Condensed Consolidated Statements of Financial Condition (Parenthetical) - USD ($) |
Jun. 30, 2019 |
Dec. 31, 2018 |
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Statement of Financial Position [Abstract] | ||||
Amount of total investment securities at fair value (in dollars) | [1] | $ 7,323,000,000 | $ 3,133,000,000 | |
Common stock, par value per share (in dollars per share) | $ 0.01 | $ 0.01 | ||
Common stock, shares authorized | 2,000,000,000 | 2,000,000,000 | ||
Common stock, shares issued | 566,018,680 | 564,851,848 | ||
Preferred stock, par value per share (in dollars per share) | $ 0.01 | $ 0.01 | ||
Preferred stock, shares authorized | 200,000,000 | 200,000,000 | ||
Preferred stock, shares issued | 5,700 | 5,700 | ||
Preferred stock, shares outstanding | 5,700 | 5,700 | ||
Preferred stock, liquidation preference (in dollars) | $ 570,000,000 | $ 570,000,000 | ||
Treasury stock, shares | 246,543,201 | 233,406,005 | ||
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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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Net income | $ 753 | $ 669 | $ 1,479 | $ 1,335 |
Other comprehensive income, net of tax | ||||
Unrealized gains (losses) on available-for-sale investment securities, net of tax | 71 | (1) | 102 | (8) |
Unrealized (losses) gains on cash flow hedges, net of tax | (18) | 7 | (30) | 26 |
Unrealized pension and post-retirement plan gains, net of tax | 0 | 0 | 1 | 1 |
Other comprehensive income | 53 | 6 | 73 | 19 |
Comprehensive income | $ 806 | $ 675 | $ 1,552 | $ 1,354 |
Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
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Statement of Stockholders' Equity [Abstract] | ||||
Dividends declared, common stock (dollars per share) | $ 0.4 | $ 0.35 | $ 0.80 | $ 0.7 |
Dividends declared, preferred stock (dollars per share) | $ 0 | $ 0 | $ 2,750 | $ 2,750 |
Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions |
6 Months Ended | |
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Jun. 30, 2019 |
Jun. 30, 2018 |
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Cash flows from operating activities | ||
Net income | $ 1,479 | $ 1,335 |
Adjustments to reconcile net income to net cash provided by operating activities | ||
Provision for loan losses | 1,596 | 1,493 |
Depreciation and amortization | 202 | 216 |
Amortization of deferred revenues and accretion of accretable yield on acquired loans | (201) | (198) |
Net loss on investments and other assets | 21 | 22 |
Other, net | (11) | (93) |
Changes in assets and liabilities | ||
(Increase) decrease in other assets | (23) | 190 |
Increase (decrease) in accrued expenses and other liabilities | 850 | (141) |
Net cash provided by operating activities | 3,913 | 2,824 |
Cash flows from investing activities | ||
Purchases of other short-term investments | (1,000) | 0 |
Maturities of available-for-sale investment securities | 70 | 86 |
Purchases of available-for-sale investment securities | (4,115) | 0 |
Maturities of held-to-maturity investment securities | 12 | 9 |
Purchases of held-to-maturity investment securities | (34) | (62) |
Net principal disbursed on loans originated for investment | (950) | (1,639) |
Purchases of other investments | (21) | (5) |
Purchases of premises and equipment | (151) | (118) |
Net cash used for investing activities | (6,189) | (1,729) |
Cash flows from financing activities | ||
Proceeds from issuance of securitized debt | 1,234 | 2,184 |
Maturities and repayment of securitized debt | (4,070) | (2,337) |
Proceeds from issuance of other long-term borrowings | 595 | 844 |
Maturities and repayment of other long-term borrowings | (7) | (753) |
Proceeds from issuance of common stock | 4 | 3 |
Purchases of treasury stock | (948) | (1,140) |
Net increase in deposits | 1,955 | 2,900 |
Dividends paid on common and preferred stock | (279) | (264) |
Net cash (used for) provided by financing activities | (1,516) | 1,437 |
Net (decrease) increase in cash, cash equivalents and restricted cash | (3,792) | 2,532 |
Cash, cash equivalents and restricted cash, at beginning of period | 15,145 | 13,387 |
Cash, cash equivalents and restricted cash, at end of period | 11,353 | 15,919 |
Reconciliation of cash, cash equivalents and restricted cash | ||
Cash and cash equivalents | 10,313 | 15,289 |
Restricted cash | $ 1,040 | $ 630 |
Background and Basis of Presentation |
6 Months Ended |
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Jun. 30, 2019 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Background and Basis of Presentation | Background and Basis of Presentation Description of Business Discover Financial Services ("DFS" or the "Company") is a direct banking and payment services company. The Company is a bank holding company under the Bank Holding Company Act of 1956 as well as a financial holding company under the Gramm-Leach-Bliley Act and therefore is subject to oversight, regulation and examination by the Board of Governors of the Federal Reserve System (the "Federal Reserve"). The Company provides direct banking products and services and payment services through its subsidiaries. The Company offers its customers credit card loans, private student loans, personal loans, home equity loans and deposit products. The Company also operates the Discover Network, the PULSE network ("PULSE") and Diners Club International ("Diners Club"). The Discover Network processes transactions for Discover-branded credit and debit cards and provides payment transaction processing and settlement services. PULSE operates an electronic funds transfer network, providing financial institutions issuing debit cards on the PULSE network with access to ATMs domestically and internationally, as well as merchant acceptance throughout the U.S. for debit card transactions. Diners Club is a global payments network of licensees, which are generally financial institutions, that issue Diners Club branded charge cards and/or provide card acceptance services. The Company's business activities are managed in two segments, Direct Banking and Payment Services, based on the products and services provided. For a detailed description of the operations of each segment, as well as the allocation conventions used in business segment reporting, see Note 15: Segment Disclosures. Basis of Presentation The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, the financial statements reflect all adjustments which are necessary for a fair presentation of the results for the interim period. All such adjustments are of a normal, recurring nature. The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and related disclosures. These estimates are based on information available as of the date of the condensed consolidated financial statements. The Company believes that the estimates used in the preparation of the condensed consolidated financial statements are reasonable. Actual results could differ from these estimates. These interim condensed consolidated financial statements should be read in conjunction with the Company's 2018 audited consolidated financial statements filed with the Company's annual report on Form 10-K for the year ended December 31, 2018. Recently Issued Accounting Pronouncements In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU replaces the incurred loss model with the current expected credit loss ("CECL") approach. For loans carried at amortized cost, the allowance for loan losses will be based on management's current estimate of all expected credit losses over the remaining contractual term of the loans. Upon the origination of a loan, the Company will have to record its estimate of all expected credit losses on that loan through an immediate charge to earnings. Updates to that estimate each period will be recorded through provision expense. The CECL estimate is to be based on historical experience, current conditions and reasonable and supportable forecasts. The CECL approach is expected to increase the Company's allowance for loan losses as a result of: (1) recording reserves for expected losses, not simply those deemed to be already incurred, (2) extending the loss estimate period over the entire life of the loan and (3) reclassification of the credit loss component of the purchased credit-impaired ("PCI") loan portfolio out of loan carrying value and into the allowance for loan losses. The allowance for loan losses on all loans carried at amortized cost, including PCI loans and loans modified in a troubled debt restructuring ("TDR") will be measured under the CECL approach. Existing specialized measurement guidance for PCI loans, which the ASU refers to as purchased credit-deteriorated ("PCD"), and TDRs will be eliminated, although certain separate disclosure guidance will be retained. Measurement of credit impairment of available-for-sale debt securities will generally remain unchanged under the new rules, but any such impairment will be recorded through an allowance, rather than a direct write-down of the security. The ASU is effective for the Company on January 1, 2020. A cross-functional governance structure is in place to oversee the implementation of the standard. The Company continues to refine loss forecasting models and technological solutions, and advance processes and controls in support of the new standard. Management is also finalizing key accounting interpretations, the time period over which losses can be reasonably estimated and the reversion method for periods beyond the reasonable and supportable forecast period. Upon adoption, the allowance for loan losses is expected to increase with an offsetting adjustment, net of taxes, to retained earnings. Additionally, there will be an immaterial increase to the carrying value of PCD loans. Adoption of the standard will materially impact stockholders' equity, regulatory capital and the Company's consolidated financial condition. In addition, the Company's results of operations may be subject to more volatility. The extent of the impact upon adoption will depend on the characteristics of the Company's loan portfolio and economic conditions at that date, as well as forecasted conditions thereafter.
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Investments |
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Investments, Debt and Equity Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investments | Investments
There were no losses related to other-than-temporary impairments and no proceeds from sales or recognized gains and losses on available-for-sale securities during the three and six months ended June 30, 2019 and 2018. See Note 7: Accumulated Other Comprehensive Income for unrealized gains and losses on available-for-sale securities during the three and six months ended June 30, 2019 and 2018.
Other Investments As a part of the Company's community reinvestment initiatives, the Company has made equity investments in certain limited partnerships and limited liability companies that finance the construction and rehabilitation of affordable rental housing, as well as stimulate economic development in low to moderate income communities. These investments are accounted for using the equity method of accounting and are recorded within other assets. The related commitment for future investments is recorded in accrued expenses and other liabilities within the condensed consolidated statements of financial condition. The portion of each investment's operating results allocable to the Company reduces the carrying value of the investments and is recorded in other expense within the condensed consolidated statements of income. The Company further reduces the carrying value of the investments by recognizing any amounts that are in excess of future net tax benefits in other expense. The Company earns a return primarily through the receipt of tax credits allocated to the affordable housing projects and the community revitalization projects. These investments are not consolidated as the Company does not have a controlling financial interest in the entities. As of June 30, 2019 and December 31, 2018, the Company had outstanding investments in these entities of $310 million and $295 million, respectively, and related contingent liabilities of $65 million and $49 million, respectively. Of the above outstanding equity investments, the Company had $290 million and $271 million of investments related to affordable housing projects as of June 30, 2019 and December 31, 2018, respectively, which had $59 million and $30 million related contingent liabilities, respectively.
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Loan Receivables |
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Loans and Leases Receivable Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loan Receivables | Loan Receivables The Company has three loan portfolio segments: credit card loans, other loans and PCI loans.
Credit Quality Indicators The Company regularly reviews its collection experience (including delinquencies and net charge-offs) in determining its allowance for loan losses.
As part of credit risk management activities, on an ongoing basis, the Company reviews information related to the performance of a customer's account with the Company as well as information from credit bureaus, such as FICO or other credit scores, relating to the customer's broader credit performance. FICO scores are generally obtained at origination of the account and are refreshed monthly or quarterly thereafter to assist in predicting customer behavior. Historically, the Company has noted that a significant portion of delinquent accounts have FICO scores below 660.
For private student loans, additional credit risk management activities include monitoring the amount of loans in forbearance. Forbearance allows borrowers experiencing temporary financial difficulties and willing to make payments, the ability to temporarily suspend payments. Eligible borrowers have a lifetime cap on forbearance of 12 months. At June 30, 2019 and December 31, 2018, there were $41 million and $37 million, respectively, of private student loans, including those classified as PCI, in forbearance, representing 0.7% of total student loans in repayment and forbearance. Allowance for Loan Losses
Troubled Debt Restructurings The Company has internal loan modification programs that provide relief to credit card, personal loan and student loan borrowers who may be experiencing financial hardship. The Company continually evaluates new programs to determine which of them meet the definition of a TDR. The internal loan modification programs include both temporary and permanent programs, which vary by product. External loan modification programs are also available for credit card and personal loans. Temporary and permanent modifications on credit card and personal loans, as well as temporary modifications on student loans and certain grants of student loan forbearance, result in the loans being considered individually impaired. In addition, loans that defaulted or graduated from modification programs or forbearance are considered to be individually impaired. For credit card customers, the Company offers temporary hardship programs consisting of an interest rate reduction and in some cases a reduced minimum payment, both lasting for a period no longer than 12 months. The permanent modification program involves changing the structure of the loan to a fixed payment loan with a maturity no longer than 60 months and reducing the interest rate on the loan. The permanent modification program does not normally provide for the forgiveness of unpaid principal, but may allow for the reversal of certain unpaid interest or fee assessments. The Company also makes permanent loan modifications for customers who request financial assistance through external sources, such as a consumer credit counseling agency program. These loans typically receive a reduced interest rate but continue to be subject to the original minimum payment terms and do not normally include waiver of unpaid principal, interest or fees. Modified credit card loans that are deemed to meet the definition of TDRs include loans in both temporary and permanent programs. For personal loan customers, in certain situations the Company offers various payment programs, including temporary and permanent programs. The temporary programs normally consist of a reduction of the minimum payment for a period of no longer than 12 months with the option of a final balloon payment required at the end of the loan term or an extension of the maturity date with the total term not exceeding nine years. Further, in certain circumstances the interest rate on the loan is reduced. The permanent programs involve changing the terms of the loan in order to pay off the outstanding balance over a longer term and also in certain circumstances reducing the interest rate on the loan. Similar to the temporary programs, the total term may not exceed nine years. The Company also allows permanent loan modifications for customers who request financial assistance through external sources, similar to the credit card customers discussed above. Payments are modified based on the new terms agreed upon with the credit counseling agency. Personal loans included in temporary and permanent programs are accounted for as TDRs. At June 30, 2019, there was $5.5 billion of private student loans in repayment, which includes both PCI and non-PCI loans. To assist student loan borrowers who are experiencing temporary financial difficulties but are willing to resume making payments, the Company may offer hardship forbearance or programs that include payment deferral, temporary payment reduction, temporary interest rate reduction or extended terms. A non-PCI modified loan typically meets the definition of a TDR based on the cumulative length of the concession period and an evaluation of the credit quality of the borrower based on FICO scores. Borrower performance after using payment programs or forbearance is monitored and the Company believes the programs help to prevent defaults and are useful in assisting customers experiencing financial difficulties. The Company plans to continue to use payment programs and forbearance and, as a result, expects to have additional loans classified as TDRs in the future.
In order to evaluate the primary financial effects that resulted from credit card loans entering into a loan modification program during the three and six months ended June 30, 2019 and 2018, the Company quantified the amount by which interest and fees were reduced during the periods. During the three months ended June 30, 2019 and 2018, the Company forgave approximately $17 million and $11 million, respectively, of interest and fees as a result of accounts entering into a credit card loan modification program. During the six months ended June 30, 2019 and 2018, the Company forgave approximately $34 million and $23 million, respectively, of interest and fees as a result of accounts entering into a credit card loan modification program.
Of the account balances that defaulted as shown above for the three months ended June 30, 2019 and 2018, approximately 39% and 34%, respectively, of the total balances were charged off at the end of the month in which they defaulted from a loan modification program. Of the account balances that defaulted as shown above for the six months ended June 30, 2019 and 2018, approximately 39% and 36%, respectively, of the total balances were charged off at the end of the month in which they defaulted from a loan modification program. For accounts that have defaulted from a loan modification program and have not been subsequently charged off, the balances are included in the allowance for loan loss analysis discussed above under "— Allowance for Loan Losses." Purchased Credit-Impaired Loans Purchased loans with evidence of credit deterioration since origination for which it is probable that not all contractually required payments will be collected are considered impaired at acquisition and are reported as PCI loans. The private student loans acquired in the SLC transaction, as well as the additional acquired private student loan portfolio comprise the Company's only PCI loans at June 30, 2019 and December 31, 2018. Total PCI student loans had an outstanding balance of $1.5 billion and $1.7 billion, including accrued interest, and a related carrying amount of $1.4 billion and $1.6 billion as of June 30, 2019 and December 31, 2018, respectively.
Periodically, the Company updates the estimate of cash flows expected to be collected based on management's latest expectations of future net credit losses, borrower prepayments and certain other assumptions that affect cash flows. No provision expense was recorded during the three or six months ended June 30, 2019 and 2018. The allowance for PCI loan losses at June 30, 2019 and December 31, 2018 was $23 million and $25 million, respectively. For the three and six months ended June 30, 2019 and 2018, the increase in accretable yield was primarily driven by changes in rates on variable rate loans. Changes to accretable yield are recognized prospectively as an adjustment to yield over the remaining life of the pools. At June 30, 2019, the 30 or more days delinquency and 90 or more days delinquency rates on PCI student loans (which include loans not yet in repayment) were 2.64% and 0.58%, respectively. At December 31, 2018, the 30 or more days delinquency and 90 or more days delinquency rates on PCI student loans (which include loans not yet in repayment) were 2.93% and 0.78%, respectively. These rates include private student loans that are greater than 120 days delinquent that are covered by an indemnification agreement or insurance arrangements through which the Company expects to recover a substantial portion of the loan. The net charge-off rate on PCI student loans was 0.43% and 0.31% for the three months ended June 30, 2019 and 2018, respectively, and 0.34% and 0.66% for the six months ended June 30, 2019 and 2018, respectively.
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Credit Card and Student Loan Securitization Activities |
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Variable Interest Entities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credit Card and Student Loan Securitization Activities | Credit Card and Student Loan Securitization Activities The Company's securitizations are accounted for as secured borrowings and the related trusts are treated as consolidated subsidiaries of the Company. For a description of the Company's principles of consolidation with respect to VIEs, see Note 1: Background and Basis of Presentation to the consolidated financial statements of the Company's annual report on Form 10-K for the year ended December 31, 2018. Credit Card Securitization Activities The Company accesses the term asset securitization market through the Discover Card Master Trust I ("DCMT") and the Discover Card Execution Note Trust ("DCENT"). Credit card loan receivables are transferred into DCMT and beneficial interests in DCMT are transferred into DCENT. DCENT issues debt securities to investors that are reported in long-term borrowings. The DCENT debt structure consists of four classes of securities (DiscoverSeries Class A, B, C and D notes), with the most senior class generally receiving a triple-A rating. In order to issue senior, higher rated classes of notes, it is necessary to obtain the appropriate amount of credit enhancement, generally through the issuance of junior, lower rated or more highly subordinated classes of notes. The subordinated classes are held by wholly-owned subsidiaries of Discover Bank. The Company is exposed to credit-related risk of loss associated with trust assets as of the balance sheet date through the retention of these subordinated interests. The estimated probable incurred loss is included in the allowance for loan losses estimate. The Company's retained interests in the assets of the trusts, consisting of investments in DCENT notes held by subsidiaries of Discover Bank, constitute intercompany positions, which are eliminated in the preparation of the Company's condensed consolidated statements of financial condition. Upon transfer of credit card loan receivables to the trust, the receivables and certain cash flows derived from them become restricted for use in meeting obligations to the trusts' creditors. Further, the transferred credit card loan receivables are owned by the trust and are not available to third-party creditors of the Company. The trusts have ownership of cash balances, the amounts of which are reported in restricted cash. With the exception of the seller's interest in trust receivables, the Company's interests in trust assets are generally subordinate to the interests of third-party investors and, as such, may not be realized by the Company if needed to absorb deficiencies in cash flows that are allocated to the investors in the trusts' debt. Apart from the restricted assets related to securitization activities, the investors and the securitization trusts have no recourse to the Company's other assets or the Company's general credit for a shortage in cash flows.
The debt securities issued by the consolidated trusts are subject to credit, payment and interest rate risks on the transferred credit card loan receivables. To protect investors in the securities, there are certain features or triggering events that could cause an early amortization of the debt securities, including triggers related to the impact of the performance of the trust receivables on the availability and adequacy of cash flows to meet contractual requirements. As of June 30, 2019, no economic or other early amortization events have occurred. The Company continues to own and service the accounts that generate the loan receivables held by the trusts. Discover Bank receives servicing fees from the trusts based on a percentage of the monthly investor principal balance outstanding. Although the fee income to Discover Bank offsets the fee expense to the trusts and thus is eliminated in consolidation, failure to service the transferred loan receivables in accordance with contractual requirements could lead to a termination of the servicing rights and the loss of future servicing income, net of related expenses. Student Loan Securitization Activities Student loan trust receivables underlying third-party investors' interests are recorded in PCI loans and the related debt issued by the trusts is reported in long-term borrowings. The assets of the trusts are restricted from being sold or pledged as collateral for other borrowings and the cash flows from these restricted assets may be used only to pay obligations of the trusts. With the exception of the trusts' restricted assets, the trusts and investors have no recourse to the Company's other assets or the Company's general credit for a shortage in cash flows. Currently there is one trust from which issued securities remain outstanding to investors. Principal payments on the long-term secured borrowings are made as cash is collected on the underlying loans that are used as collateral on the secured borrowings. The Company does not have access to cash collected by the securitization trust until cash is released in accordance with the trust indenture agreement. Similar to the credit card securitizations, the Company continues to own and service the accounts that generate the student loan receivables held by the trust and receives servicing fees from the trust based on a percentage of the principal balance outstanding. Although the servicing fee income offsets the fee expense related to the trust and thus is eliminated in consolidation, failure to service the transferred loan receivables in accordance with contractual requirements could lead to a termination of the servicing rights and the loss of future servicing income, net of related expenses. Under terms of the trust arrangement, the Company has the option, but not the obligation, to provide financial support to the trust, but has never provided such support. A substantial portion of the credit risk associated with the securitized loans has been transferred to a third party under an indemnification arrangement.
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Deposits |
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Deposits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Deposits | Deposits The Company offers its deposit products to customers through two channels: (i) through direct marketing, internet origination and affinity relationships ("direct-to-consumer deposits"); and (ii) indirectly through contractual arrangements with securities brokerage firms ("brokered deposits"). Direct-to-consumer deposits include online savings accounts, certificates of deposit, money market accounts, IRA certificates of deposit and checking accounts, while brokered deposits include certificates of deposit and sweep accounts.
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Long-Term Borrowings |
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Long-Term Borrowings | Long-Term Borrowings
The Company has access to committed borrowing capacity through private securitizations to support the funding of its credit card loan receivables. As of June 30, 2019, the total commitment of secured credit facilities through private providers was $6.0 billion, none of which was drawn as of June 30, 2019. Access to the unused portions of the secured credit facilities is subject to the terms of the agreements with each of the providers, which have various expirations in calendar years 2020 through 2022. Borrowings outstanding under each facility bear interest at a margin above LIBOR or the asset-backed commercial paper costs of each individual conduit provider. The terms of each agreement provide for a commitment fee to be paid on the unused capacity and include various affirmative and negative covenants, including performance metrics and legal requirements similar to those required to issue any term securitization transaction.
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Accumulated Other Comprehensive Income |
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Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accumulated Other Comprehensive Income | Accumulated Other Comprehensive Income
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Income Taxes |
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Income Taxes | Income Taxes
Income tax expense increased $26 million and $40 million for the three and six months ended June 30, 2019, respectively, as compared to the same periods in 2018. The effective tax rate was flat for the three and six months ended June 30, 2019 as compared to the same periods in 2018. The Company is subject to examination by the Internal Revenue Service ("IRS") and tax authorities in various state, local and foreign tax jurisdictions. The Company regularly assesses the likelihood of additional assessments or settlements in each of the taxing jurisdictions resulting from these and subsequent years' examinations. The IRS is currently examining the years 2011-2015. At this time, the potential change in unrecognized tax benefits is not expected to be significant over the next 12 months. The Company believes that its reserves are sufficient to cover any tax, penalties and interest that would result from such examinations.
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Earnings Per Share |
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Earnings Per Share | Earnings Per Share
There were no anti-dilutive securities on the computation of diluted EPS for the three or six months ended June 30, 2019 and 2018.
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Capital Adequacy |
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Regulatory Capital Requirements [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Capital Adequacy | Capital Adequacy The Company is subject to the capital adequacy guidelines of the Federal Reserve, and Discover Bank, the Company's main banking subsidiary, is subject to various regulatory capital requirements as administered by the FDIC. Failure to meet minimum capital requirements can result in the initiation of certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the financial position and results of the Company and Discover Bank. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and Discover Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items, as calculated under regulatory guidelines. Capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. The Company and Discover Bank are subject to regulatory and capital rules issued by the Federal Reserve and FDIC, respectively, under the Basel Committee's December 2010 framework ("Basel III rules"). The Basel III rules, which became effective for the Company January 2015, were subject to phase-in periods through the end of 2018, based on the Company being classified as a "Standardized Approach" entity. As of January 1, 2019, the Basel III rules subject to transition have all been fully phased in with the exception of certain transition provisions that were frozen pursuant to regulation issued in November 2017. As of June 30, 2019, the Company and Discover Bank met all Basel III minimum capital ratio requirements to which they were subject. The Company and Discover Bank also met the requirements to be considered "well-capitalized" under Regulation Y and prompt corrective action regulations, respectively, and there have been no conditions or events that management believes have changed the Company's or Discover Bank's category. To be categorized as "well-capitalized," the Company and Discover Bank must maintain minimum capital ratios as set forth in the table below.
(2) The Basel III rules do not establish well-capitalized thresholds for these measures for bank holding companies. Existing well-capitalized thresholds established in the Federal Reserve's Regulation Y have been included where available.
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Commitments, Contingencies and Guarantees |
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Commitments Contingencies and Guarantees [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Commitments, Contingencies and Guarantees | Commitments, Contingencies and Guarantees In the normal course of business, the Company enters into a number of off-balance sheet commitments, transactions and obligations under guarantee arrangements that expose the Company to varying degrees of risk. The Company's commitments, contingencies and guarantee relationships are described below. Commitments Unused Credit Arrangements At June 30, 2019, the Company had unused credit arrangements for loans of approximately $204.0 billion. Such arrangements arise primarily from agreements with customers for unused lines of credit on certain credit cards and certain other loan products, provided there is no violation of conditions in the related agreements. These arrangements, substantially all of which the Company can terminate at any time and which do not necessarily represent future cash requirements, are periodically reviewed based on account usage, customer creditworthiness and loan qualification. Contingencies See Note 12: Litigation and Regulatory Matters for a description of potential liability arising from pending litigation or regulatory proceedings involving the Company. Guarantees The Company has obligations under certain guarantee arrangements, including contracts, indemnification agreements, and representations and warranties, which contingently require the Company to make payments to the guaranteed party based on changes in an underlying asset, liability or equity security of a guaranteed party, rate or index. Also included as guarantees are contracts that contingently require the Company to make payments to a guaranteed party based on another entity's failure to perform under an agreement. The Company's use of guarantees is disclosed below by type of guarantee. Securitizations Representations and Warranties As part of the Company's financing activities, the Company provides representations and warranties that certain assets pledged as collateral in secured borrowing arrangements conform to specified guidelines. Due diligence is performed by the Company, which is intended to ensure that asset guideline qualifications are met. If the assets pledged as collateral do not meet certain conforming guidelines, the Company may be required to replace, repurchase or sell such assets. In its credit card securitization activities, the Company would replace nonconforming receivables through the allocation of excess seller's interest or from additional transfers from the unrestricted pool of receivables. If the Company could not add enough receivables to satisfy the requirement, an early amortization (or repayment) of investors' interests would be triggered. In its student loan securitizations, the Company would generally repurchase the loans from the trust at the outstanding principal amount plus interest. The maximum potential amount of future payments the Company could be required to make would be equal to the current outstanding balances of third-party investor interests in credit card asset-backed securities, and the principal amount of any student loan secured borrowings, plus any unpaid interest for the corresponding secured borrowings. The Company has recorded substantially all of the maximum potential amount of future payments in long-term borrowings on the Company's condensed consolidated statements of financial condition. The Company has not recorded any incremental contingent liability associated with its secured borrowing representations and warranties. Management believes that the probability of having to replace, repurchase or sell assets pledged as collateral under secured borrowing arrangements, including an early amortization event, is low. Counterparty Settlement Guarantees Diners Club and DFS Services LLC (on behalf of PULSE) have various counterparty exposures, which are listed below.
The maximum potential amount of future payments related to such contingent obligations is dependent upon the transaction volume processed between the time a potential counterparty defaults on its settlement and the time at which the Company disables the settlement of any further transactions for the defaulting party. The Company has some contractual remedies to offset these counterparty settlement exposures (such as letters of credit or pledged deposits), however, there is no limitation on the maximum amount the Company may be liable to pay. The actual amount of the potential exposure cannot be quantified as the Company cannot determine whether particular counterparties will fail to meet their settlement obligations. In the event that all licensees and/or issuers were to become unable to settle their transactions, the Company estimates its maximum potential counterparty exposures to these settlement guarantees would be approximately $170 million as of June 30, 2019. The Company believes that the estimated amounts of maximum potential future payments are not representative of the Company's actual potential loss exposure given Diners Club's and PULSE's insignificant historical losses from these counterparty exposures. As of June 30, 2019, the Company had not recorded any contingent liability in the condensed consolidated financial statements for these counterparty exposures and management believes that the probability of any payments under these arrangements is low. Discover Network Merchant Chargeback Guarantees The Company operates the Discover Network, issues payment cards and permits third parties to issue payment cards. The Company is contingently liable for certain transactions processed on the Discover Network in the event of a dispute between the payment card customer and a merchant. The contingent liability arises if the disputed transaction involves a merchant or merchant acquirer with whom the Discover Network has a direct relationship. If a dispute is resolved in the customer's favor, the Discover Network will credit or refund the disputed amount to the Discover Network card issuer, who in turn credits its customer's account. The Discover Network will then charge back the disputed amount of the payment card transaction to the merchant or merchant acquirer, where permitted by the applicable agreement, to seek recovery of amounts already paid to the merchant for payment card transactions. If the Discover Network is unable to collect the amount subject to dispute from the merchant or merchant acquirer (e.g., in the event of merchant default or dissolution or after expiration of the time period for chargebacks in the applicable agreement), the Discover Network will bear the loss for the amount credited or refunded to the customer. In most instances, a loss by the Discover Network is unlikely to arise in connection with payments on card transactions because most products or services are delivered when purchased and credits are issued by merchants on returned items in a timely fashion, thus minimizing the likelihood of cardholder disputes with respect to amounts paid by the Discover Network. However, where the product or service is not scheduled to be provided to the customer until a later date following the purchase, the likelihood of a contingent payment obligation by the Discover Network increases. Losses related to merchant chargebacks were not material for the three and six months ended June 30, 2019 and 2018. The maximum potential amount of obligations of the Discover Network arising as a result of such contingent obligations is estimated to be the portion of the total Discover Network transaction volume processed to date for which timely and valid disputes may be raised under applicable law and relevant issuer and customer agreements. There is no limitation on the maximum amount the Company may be liable to pay to issuers. However, the Company believes that such amount is not representative of the Company's actual potential loss exposure based on the Company's historical experience. The actual amount of the potential exposure cannot be quantified as the Company cannot determine whether the current or cumulative transaction volumes may include or result in disputed transactions.
The Company did not record any contingent liability in the condensed consolidated financial statements for merchant chargeback guarantees as of June 30, 2019 or December 31, 2018. The Company mitigates the risk of potential loss exposure by withholding settlement from merchants, obtaining third-party guarantees, or obtaining escrow deposits or letters of credit from certain merchant acquirers or merchants that are considered higher risk due to various factors such as time delays in the delivery of products or services. As of June 30, 2019 and December 31, 2018, the Company had escrow deposits and settlement withholdings of $11 million and $10 million, respectively, which are recorded in interest-bearing deposit accounts and accrued expenses and other liabilities on the Company's condensed consolidated statements of financial condition.
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Litigation and Regulatory Matters |
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Jun. 30, 2019 | |
Loss Contingency [Abstract] | |
Litigation and Regulatory Matters | Litigation and Regulatory Matters In the normal course of business, from time to time, the Company has been named as a defendant in various legal actions, including arbitrations, class actions and other litigation, arising in connection with its activities. Certain of the actual or threatened legal actions include claims for substantial compensatory and/or punitive damages or claims for indeterminate amounts of damages. The litigation process is not predictable and can lead to unexpected results. The Company contests liability and/or the amount of damages as appropriate in each pending matter. The Company has historically offered its customers an arbitration clause in its customer agreements. The arbitration clause allows the Company and its customers to quickly and economically resolve disputes. Additionally, the arbitration clause has in some instances limited the costs of, and the Company's exposure to, litigation. Future legal and regulatory challenges and prohibitions may cause the Company to discontinue its offering and use of such clauses. From time to time, the Company is involved in legal actions challenging its arbitration clause. Bills may be periodically introduced in Congress to directly or indirectly prohibit the use of pre-dispute arbitration clauses. The Company is also involved, from time to time, in other reviews, investigations and proceedings (both formal and informal) by governmental agencies regarding the Company's business including, among other matters, consumer regulatory, accounting, tax and other operational matters, some of which may result in significant adverse judgments, settlements, fines, penalties, injunctions, decreases in regulatory ratings, customer restitution or other relief, which could materially impact the Company's condensed consolidated financial statements, increase its cost of operations, or limit its ability to execute its business strategies and engage in certain business activities. For example, the Company is currently the subject of an action by the Federal Reserve with respect to anti-money laundering and related compliance programs as referred to below. In addition, certain subsidiaries of the Company are subject to a consent order with the Consumer Financial Protection Bureau (the "CFPB") regarding certain student loan servicing practices, as described below. Pursuant to powers granted under federal banking laws, regulatory agencies have broad and sweeping discretion, and may assess civil money penalties, require changes to certain business practices or require customer restitution at any time. The existing supervisory action related to anti-money laundering and related laws and regulations will limit for a period of time the Company's ability to enter into certain types of acquisitions and make certain types of investments. In accordance with applicable accounting guidance, the Company establishes an accrued liability for legal and regulatory matters when those matters present loss contingencies that are both probable and estimable. Litigation and regulatory settlement related expense was not material for the three and six months ended June 30, 2019 and 2018. There may be an exposure to loss in excess of any amounts accrued. The Company believes the estimate of the aggregate range of reasonably possible losses (meaning those losses the likelihood of which is more than remote but less than likely) in excess of the amounts that the Company has accrued for legal and regulatory proceedings is up to $100 million. This estimated range of reasonably possible losses is based upon currently available information for those proceedings in which the Company is involved, takes into account the Company's best estimate of such losses for those matters for which an estimate can be made, and does not represent the Company's maximum potential loss exposure. Various aspects of the legal proceedings underlying the estimated range will change from time to time and actual results may vary significantly from the estimate. The Company's estimated range above involves significant judgment, given the varying stages of the proceedings, the existence of numerous yet to be resolved issues, the breadth of the claims (often spanning multiple years and, in some cases, a wide range of business activities), unspecified damages and/or the novelty of the legal issues presented. The outcome of pending matters could be material to the Company's condensed consolidated financial condition, operating results and cash flows for a particular future period, depending on, among other things, the level of the Company's income for such period, and could adversely affect the Company's reputation. On May 26, 2015, the Company entered into a written agreement with the Federal Reserve Bank of Chicago where the Company agreed to enhance the Company's enterprise-wide anti-money laundering and related compliance programs. The agreement does not include civil money penalties. On July 22, 2015, the Company announced that its subsidiaries, Discover Bank, SLC and Discover Products Inc. (the "Discover Subsidiaries"), agreed to a consent order with the CFPB resolving the agency's investigation with respect to certain student loan servicing practices. The CFPB's investigation into these practices has been previously disclosed by the Company, initially in February 2014. The order required the Discover Subsidiaries to provide redress of approximately $16 million to consumers who may have been affected by the activities described in the order related to certain collection calls, overstatements of minimum payment due amounts in billing statements, and provision of interest paid information to consumers, and provide regulatory disclosures with respect to loans acquired in default. In addition, the Discover Subsidiaries were required to pay a $2.5 million civil money penalty to the CFPB. As required by the consent order, on October 19, 2015, the Discover Subsidiaries submitted to the CFPB a redress plan and a compliance plan designed to ensure that the Discover Subsidiaries provide redress and otherwise comply with the terms of the order. On March 8, 2016, a class action lawsuit was filed against the Company, other credit card networks, other issuing banks, and EMVCo in the U.S. District Court for the Northern District of California (B&R Supermarket, Inc., d/b/a Milam's Market, et al. v. Visa, Inc. et al.) alleging violations of the Sherman Antitrust Act, California's Cartwright Act, and unjust enrichment. Plaintiffs allege a conspiracy by defendants to shift fraud liability to merchants with the migration to the EMV security standard and chip technology. Plaintiffs assert joint and several liability among the defendants and seek unspecified damages, including treble damages, attorneys' fees, costs and injunctive relief. On July 15, 2016, plaintiffs filed an amended complaint that includes additional named plaintiffs, reasserts the original claims, and includes additional state law causes of action. On September 30, 2016, the court granted the motions to dismiss for certain issuing banks and EMVCo but denied the motions to dismiss filed by the networks, including the Company. In May 2017, the Court entered an order transferring the entire action to a federal court in New York that is presiding over certain related claims that are pending in the actions consolidated as MDL 1720. On March 11, 2018, the Court entered an order denying the plaintiffs' motion for class certification without prejudice to filing a renewed motion. Plaintiffs filed a renewed motion for class certification on July 16, 2018 and opening merits expert reports on October 5, 2018. Defendants filed their Opposition to Class Certification on March 15, 2019. Briefing and expert discovery related to class certification will close in July 2019 with a hearing date on class certification to be scheduled. The Company is not in a position at this time to assess the likely outcome or its exposure, if any, with respect to this matter, but will seek to vigorously defend against all claims asserted by the plaintiffs.
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Fair Value Measurements |
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Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fair Value Measurements | Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC Topic 820, Fair Value Measurement, provides a three-level hierarchy for classifying financial instruments, which is based on whether the inputs to the valuation techniques used to measure the fair value of each financial instrument are observable or unobservable. It also requires certain disclosures about those measurements. The three-level valuation hierarchy is as follows:
The determination of classification of its financial instruments within the fair value hierarchy is performed at least quarterly by the Company. For transfers in and out of the levels of the fair value hierarchy, the Company discloses the fair value measurement based on the value immediately preceding the transfer. The Company's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and involves consideration of factors specific to the asset or liability. Furthermore, certain techniques used to measure fair value involve some degree of judgment and, as a result, are not necessarily indicative of the amounts the Company would realize in a current market exchange. Assets and Liabilities Measured at Fair Value on a Recurring Basis
There were no transfers between Levels 1 and 2 within the fair value hierarchy for the three or six months ended June 30, 2019 and 2018. Available-for-Sale Investment Securities Investment securities classified as available-for-sale consist of U.S. Treasury securities and residential mortgage-backed securities. The fair value estimates of investment securities classified as Level 1, consisting of U.S. Treasury securities, are determined based on quoted market prices for the same securities. The Company classifies residential mortgage-backed securities as Level 2, the fair value estimates of which are based on the best information available. This data may consist of observed market prices, broker quotes or discounted cash flow models that incorporate assumptions such as benchmark yields, issuer spreads, prepayment speeds, credit ratings and losses, the priority of which may vary based on availability of information. The Company validates the fair value estimates provided by pricing services primarily by comparison to valuations obtained through other pricing sources. The Company evaluates pricing variances amongst different pricing sources to ensure that the valuations utilized are reasonable. The Company also corroborates the reasonableness of the fair value estimates with analysis of trends of significant inputs, such as market interest rate curves. The Company further performs due diligence in understanding the procedures and techniques performed by the pricing services to derive fair value estimates. At June 30, 2019, amounts reported in residential mortgage-backed securities reflect government-rated obligations issued by Fannie Mae, Freddie Mac and Ginnie Mae with a par value of $479 million, a weighted-average coupon of 2.81% and a weighted-average remaining maturity of three years. Derivative Financial Instruments The Company's derivative financial instruments consist of interest rate swaps and foreign exchange forward contracts. These instruments are classified as Level 2 as their fair values are estimated using proprietary pricing models, containing certain assumptions based on readily observable market-based inputs, including interest rate curves, option volatility and foreign currency forward and spot rates. In determining fair values, the pricing models use widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity and the observable market-based inputs. The fair values of the interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments are based on an expectation of future interest rates derived from the observable market interest rate curves. The Company considers collateral and master netting agreements that mitigate credit exposure to counterparties in determining the counterparty credit risk valuation adjustment. The fair values of the currency instruments are valued comparing the contracted forward exchange rate pertaining to the specific contract maturities to the current market exchange rate. The Company validates the fair value estimates of interest rate swaps primarily through comparison to the fair value estimates computed by the counterparties to each of the derivative transactions. The Company evaluates pricing variances amongst different pricing sources to ensure that the valuations utilized are reasonable. The Company also corroborates the reasonableness of the fair value estimates with analysis of trends of significant inputs, such as market interest rate curves. The Company performs due diligence in understanding the impact to any changes to the valuation techniques performed by proprietary pricing models prior to implementation, working closely with the third-party valuation service, and reviews the control objectives of the service at least annually. The Company corroborates the fair value of foreign exchange forward contracts through independent calculation of the fair value estimates. Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis The Company also has assets that under certain conditions are subject to measurement at fair value on a non-recurring basis. These assets include those associated with acquired businesses, including goodwill and other intangible assets. For these assets, measurement at fair value in periods subsequent to the initial recognition of the assets is applicable if one or more of the assets is determined to be impaired. The Company had no impairments related to these assets during the three or six months ended June 30, 2019 and 2018. Financial Instruments Measured at Other Than Fair Value
(3) Excludes deposits without contractually defined maturities for all periods presented.
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Derivatives and Hedging Activities |
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Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Derivatives and Hedging Activities | Derivatives and Hedging Activities The Company uses derivatives to manage its exposure to various financial risks. The Company does not enter into derivatives for trading or speculative purposes. Certain derivatives used to manage the Company's exposure to foreign currency are not designated as hedges and do not qualify for hedge accounting. Derivatives may give rise to counterparty credit risk, which generally is addressed through collateral arrangements as described under the sub-heading "— Collateral Requirements and Credit-Risk Related Contingency Features." The Company enters into derivative transactions with established dealers that meet minimum credit criteria established by the Company. All counterparties must be pre-approved prior to engaging in any transaction with the Company. Counterparties are monitored on a regular basis by the Company to ensure compliance with the Company's risk policies and limits. In determining the counterparty credit risk valuation adjustment for the fair values of derivatives, the Company considers collateral and legally enforceable master netting agreements that mitigate credit exposure to related counterparties. All derivatives are recorded in other assets at their gross positive fair values and in accrued expenses and other liabilities at their gross negative fair values. See Note 13: Fair Value Measurements for a description of the valuation methodologies of derivatives. Cash collateral amounts associated with derivative positions that are cleared through an exchange are legally characterized as settlement of the derivative positions. Such collateral amounts are reflected as offsets to the associated derivatives balances recorded in other assets or in accrued expenses and other liabilities. Other cash collateral posted and held balances are recorded in other assets and deposits, respectively, in the condensed consolidated statements of financial condition. Collateral amounts recorded in the condensed consolidated statements of financial condition are based on the net collateral posted or held position for each applicable legal entity's master netting arrangement with each counterparty. Derivatives Designated as Hedges Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows arising from changes in interest rates, or other types of forecasted transactions, are considered cash flow hedges. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Cash Flow Hedges The Company uses interest rate swaps to manage its exposure to changes in interest rates related to future cash flows resulting from interest payments on credit card securitized debt and deposits. The Company's outstanding cash flow hedges are for an initial maximum period of seven years for securitized debt and deposits. The derivatives are designated as hedges of the risk of changes in cash flows on the Company's LIBOR or Federal Funds rate-based interest payments, and qualify for hedge accounting in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). The change in the fair value of derivatives designated as cash flow hedges is recorded in OCI and is subsequently reclassified into earnings in the period that the hedged forecasted cash flows affect earnings. Amounts reported in AOCI related to derivatives at June 30, 2019 will be reclassified to interest expense as interest payments are accrued on certain of the Company's floating-rate securitized debt and deposits. During the next 12 months, the Company estimates it will reclassify an immaterial amount of pretax expense to interest expense related to its derivatives designated as cash flow hedges. Fair Value Hedges The Company is exposed to changes in fair value of its fixed-rate debt obligations due to changes in interest rates. The Company uses interest rate swaps to manage its exposure to changes in fair value of certain fixed-rate long-term borrowings, including securitized debt and bank or other senior notes, and deposits attributable to changes in LIBOR or OIS rate, benchmark interest rates as defined by ASC 815. These interest rate swaps qualify as fair value hedges in accordance with ASC 815. Changes in both (i) the fair values of the derivatives and (ii) the hedged long-term borrowings and deposits relating to the risk being hedged are recorded in interest expense. The changes generally provide substantial offset to one another, with any difference in interest expense. Derivatives Not Designated as Hedges Foreign Exchange Forward Contracts The Company has foreign exchange forward contracts that are economic hedges and are not designated as accounting hedges. The Company enters into foreign exchange forward contracts to manage foreign currency risk. Changes in the fair value of these contracts are recorded in other income. Derivatives Cleared Through an Exchange The legal characterization of cash variation margin payments on derivatives cleared through an exchange are legally considered settlement payments and are accounted for with corresponding derivative positions as one unit of account and not separately as collateral. With settlement payments on derivative positions cleared through this exchange reflected as offsets to the associated derivative asset and liability balances, the fair values of derivative instruments and collateral balances shown are generally reduced. Derivatives Activity
For the impact of the derivative instruments on OCI, see Note 7: Accumulated Other Comprehensive Income. Collateral Requirements and Credit-Risk Related Contingency Features The Company has master netting arrangements and minimum collateral posting thresholds with its counterparties for its fair value and cash flow hedge interest rate swaps and foreign exchange forward contracts. The Company has not sought a legal opinion in relation to the enforceability of its master netting arrangements and, as such, does not report any of these positions on a net basis. Collateral is required by either the Company or its subsidiaries or the counterparty depending on the net fair value position of these derivatives held with that counterparty. The Company may also be required to post collateral with a counterparty for its fair value and cash flow hedge interest rate swaps depending on the credit rating it or Discover Bank receives from specified major credit rating agencies. Collateral receivable or payable amounts are generally not offset against the fair value of these derivatives, but are recorded separately in other assets or deposits. However, certain cash collateral amounts related to positions cleared through an exchange are reflected as offsets to the associated derivatives balances recorded in other assets and accrued expenses and other liabilities. At June 30, 2019, Discover Bank's credit rating met specified thresholds set by its counterparties. However, if its credit rating is reduced below investment grade, Discover Bank would be required to post additional collateral. The amount of additional collateral as of June 30, 2019 would have been $20 million. DFS (Parent Company) had no outstanding derivatives as of June 30, 2019, and therefore, no collateral was required. The Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations.
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Segment Disclosures |
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Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Segment Disclosures | Segment Disclosures The Company's business activities are managed in two segments: Direct Banking and Payment Services.
The business segment reporting provided to and used by the Company's chief operating decision maker is prepared using the following principles and allocation conventions:
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Revenue from Contracts with Customers |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Revenue from Contracts with Customers | Revenue from Contracts with Customers ASC Topic 606, Revenue from Contracts with Customers ("ASC 606"), generally applies to the sales of any good or service for which no other specific accounting guidance is provided. ASC 606 defines a principles-based model under which revenue from a contract is allocated to the distinct performance obligations within the contract and recognized in income as each performance obligation is satisfied. The Company's revenue that is subject to this model includes discount and interchange, protection products fees, transaction processing revenue, and amounts classified as other income.
For a detailed description of the Company's significant revenue recognition accounting policies, see Note 2: Summary of Significant Accounting Policies to the consolidated financial statements of the Company's annual report on Form 10-K for the year ended December 31, 2018.
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Subsequent Events |
6 Months Ended |
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Jun. 30, 2019 | |
Subsequent Events [Abstract] | |
Subsequent Events | Subsequent Events The Company has evaluated events and transactions that have occurred subsequent to June 30, 2019 and determined that there were no subsequent events that would require recognition or disclosure in the condensed consolidated financial statements.
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Background and Basis of Presentation (Policies) |
6 Months Ended |
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Jun. 30, 2019 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Basis of Presentation and Significant Accounting Policies | The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, the financial statements reflect all adjustments which are necessary for a fair presentation of the results for the interim period. All such adjustments are of a normal, recurring nature. |
Use of Estimates | The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and related disclosures. These estimates are based on information available as of the date of the condensed consolidated financial statements. The Company believes that the estimates used in the preparation of the condensed consolidated financial statements are reasonable. Actual results could differ from these estimates. |
Investments (Tables) |
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Investments, Debt and Equity Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Investment Securities |
(3) Consists of residential mortgage-backed securities issued by Fannie Mae, Freddie Mac and Ginnie Mae.
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Schedule of Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value |
(3) Amounts represent residential mortgage-backed securities that were classified as held-to-maturity as they were entered into as a part of the Company's community reinvestment initiatives.
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Schedule of Fair Value of Securities in a Continuous Unrealized Loss Position for Less Than 12 Months and More Than 12 Months |
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Schedule of Maturities of Available-for-Sale Debt Securities and Held-to-Maturity Debt Securities |
(1) Maturities of residential mortgage-backed securities are reflective of the contractual maturities of the investment.
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Loan Receivables (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Loans and Leases Receivable Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Loan Receivables |
(2) Amounts include carrying values of $326 million and $363 million in loans pledged as collateral against the note issued from The Student Loan Corporation ("SLC") securitization trust at June 30, 2019 and December 31, 2018, respectively. See Note 4: Credit Card and Student Loan Securitization Activities for additional information.
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Schedule of Delinquent and Non-Accruing Loans |
(4) Private student loans that are 90 or more days delinquent and accruing interest include $7 million of loans accounted for as TDRs at June 30, 2019 and December 31, 2018.
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Schedule of Net Charge-offs |
(1) Net charge-off rate represents net charge-off dollars (annualized) divided by average loans for the reporting period.
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Schedule of Credit Risk Profile by FICO Score |
(1) PCI loans are discussed under the heading "— Purchased Credit-Impaired Loans."
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Schedule of Changes in the Allowance for Loan Losses |
(2) Net change in reserves on PCI pools having no remaining non-accretable difference.
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Schedule of Net Charge-offs of Interest and Fee Revenues on Loan Receivables |
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Schedule of Allowance for Loan Losses and Recorded Investment in its Loan Portfolio by Impairment Methodology |
(3) The unpaid principal balance of credit card loans was $2.5 billion and $2.0 billion at June 30, 2019 and December 31, 2018, respectively. All loans accounted for as TDRs have a related allowance for loan losses.
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Schedule of Troubled Debt Restructurings |
(3) Includes credit card loans that were modified in TDRs, but are no longer enrolled in a TDR program due to noncompliance with the terms of the modification or due to successful completion of a program after which charging privileges may be reinstated based on customer-level evaluation. The average balance of credit card loans that were no longer enrolled in a TDR program was $834 million and $397 million for the three months ended June 30, 2019 and 2018, respectively, and $756 million and $391 million for the six months ended June 30, 2019 and 2018, respectively.
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Schedule of Loans That Entered a Modification Program During the Period |
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Schedule of Troubled Debt Restructurings That Subsequently Defaulted |
(3) For student loans, defaults have been defined as loans that are 60 or more days delinquent. The outstanding balance upon default is generally the loan balance at the end of the month prior to default.
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Schedule of Changes in Accretable Yield for the Acquired Loans |
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Credit Card and Student Loan Securitization Activities (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Variable Interest Entities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Restricted Credit Card Securitized Assets [Text Block] |
(1) The Company maintains its allowance for loan losses at an amount sufficient to absorb probable losses inherent in all loan receivables, which includes all loan receivables in the trusts. Therefore, credit risk associated with the transferred receivables is fully reflected on the Company's balance sheet in accordance with GAAP.
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Schedule of Restricted Student Loan Securitized Assets [Text Block] |
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Deposits (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Deposits [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Interest Bearing Deposit Accounts |
(1) Includes $2.0 billion and $1.7 billion in certificates of deposit equal to or greater than $250,000, the Federal Deposit Insurance Corporation ("FDIC") insurance limit, as of June 30, 2019 and December 31, 2018, respectively.
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Schedule of $100,000 or More Certificates of Deposit Maturities |
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Schedule of Certificates of Deposit Maturities |
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Long-Term Borrowings (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Long-Term Borrowings and Weighted Average Interest Rates |
(5) Repayment of this debt is dependent upon the timing of principal and interest payments on the underlying student loans. The date shown represents final maturity date.
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Schedule of Long-Term Borrowings Maturities |
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Accumulated Other Comprehensive Income (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) |
(1) Represents the adjustment to AOCI as a result of adoption of ASU No. 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, in the second quarter of 2018.
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Schedule of Other Comprehensive Income Before Reclassifications and Amounts Reclassified from AOCI |
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Income Taxes (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Effective Income Tax Rate Calculation |
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Earnings Per Share (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Basic and Diluted EPS |
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Capital Adequacy (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Regulatory Capital Requirements [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Minimum and Well-Capitalized Requirements |
(2) The Basel III rules do not establish well-capitalized thresholds for these measures for bank holding companies. Existing well-capitalized thresholds established in the Federal Reserve's Regulation Y have been included where available.
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Commitments, Contingencies and Guarantees (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Merchant Chargeback Guarantees [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Guarantor Obligations [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Maximum Potential Counterparty Exposures Related to Settlement Guarantees and Merchant Chargeback Guarantee |
(1) Represents period transactions processed on the Discover Network for which a potential liability exists that, in aggregate, can differ from credit card sales volume.
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Fair Value Measurements (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis |
(1) Derivative instrument carrying values in an asset or liability position are presented as part of other assets or accrued expenses and other liabilities, respectively, in the Company's condensed consolidated statements of financial condition.
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Schedule of Financial Instruments Measured at Other Than Fair Value |
(3) Excludes deposits without contractually defined maturities for all periods presented.
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Derivatives and Hedging Activities (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Fair Value and Outstanding Notional Amounts of Derivative Instruments and Related Collateral Balances |
(3) Collateral amounts, which consist of both cash and investment securities, are limited to the related derivative asset/liability balance and do not include excess collateral received/pledged.
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Schedule of Hedged Items in Fair Value Hedging Relationship |
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Schedule of Impact of the Derivative Instruments on Income |
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Segment Disclosures (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Schedule of Segment Disclosures |
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Revenue from Contracts with Customers (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Revenue from Contract with Customer [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disaggregation of Revenue [Table Text Block] |
(2) Excludes $1 million and $2 million of deposit product fees that are reported within net interest income for the three and six months ended June 30, 2019, respectively, and $1 million for the three and six months ended June 30, 2018.
|
Background and Basis of Presentation (Narrative) (Details) |
6 Months Ended |
---|---|
Jun. 30, 2019
segment
| |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Number of reportable segments (in number of segments) | 2 |
Investments (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
|
Investment Holdings [Line Items] | |||||
Losses related to other-than-temporary impairments | $ 0 | $ 0 | $ 0 | $ 0 | |
Proceeds from sales of available-for-sale securities | 0 | 0 | 0 | 0 | |
Recognized gains (losses) on available-for-sale securities | 0 | $ 0 | 0 | $ 0 | |
Affordable housing project equity method investments | 290 | 290 | $ 271 | ||
Contingent liabilities related to affordable housing project equity method investments | 59 | 59 | 30 | ||
Other Assets [Member] | Community Reinvestment Act [Member] | |||||
Investment Holdings [Line Items] | |||||
Equity method investments | 310 | 310 | 295 | ||
Other Liabilities [Member] | Community Reinvestment Act [Member] | |||||
Investment Holdings [Line Items] | |||||
Contingent liabilities related to equity method investments | $ 65 | $ 65 | $ 49 |
Investments (Schedule of Investment Securities) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
|||||||
---|---|---|---|---|---|---|---|---|---|
Investment Holdings [Line Items] | |||||||||
Other short-term investments | $ 1,000 | $ 0 | |||||||
Investment securities | 7,581 | 3,370 | |||||||
U.S. Treasury Securities [Member] | |||||||||
Investment Holdings [Line Items] | |||||||||
Investment securities | [1] | 6,835 | 2,586 | ||||||
Derivative collateral | 53 | 42 | |||||||
Residential Mortgage-Backed Securities - Agency [Member] | |||||||||
Investment Holdings [Line Items] | |||||||||
Investment securities | [2] | 746 | 784 | ||||||
Certificates of Deposit [Member] | |||||||||
Investment Holdings [Line Items] | |||||||||
Other short-term investments | [3] | $ 1,000 | $ 0 | ||||||
|
Investments (Schedule of Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, amortized cost | [1] | $ 7,174 | $ 3,118 | |||||||||
Available-for-sale investment securities, gross unrealized gains | [1] | 151 | 27 | |||||||||
Available-for-sale investment securities, gross unrealized losses | [1] | (2) | (12) | |||||||||
Available-for-sale investment securities, fair value | [1] | 7,323 | 3,133 | |||||||||
Held-to-maturity investment securities, amortized cost | [2] | 258 | 237 | |||||||||
Held-to-maturity investment securities, gross unrealized gains | [2] | 3 | 0 | |||||||||
Held-to-maturity investment securities, gross unrealized losses | [2] | (1) | (4) | |||||||||
Held-to-maturity investment securities, fair value | [2] | 260 | 233 | |||||||||
U.S. Treasury Securities [Member] | ||||||||||||
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, amortized cost | [1] | 6,686 | 2,559 | |||||||||
Available-for-sale investment securities, gross unrealized gains | [1] | 149 | 27 | |||||||||
Available-for-sale investment securities, gross unrealized losses | [1] | 0 | 0 | |||||||||
Available-for-sale investment securities, fair value | [1] | 6,835 | 2,586 | |||||||||
Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, amortized cost | [1] | 488 | [3] | 559 | ||||||||
Available-for-sale investment securities, gross unrealized gains | [1] | 2 | 0 | |||||||||
Available-for-sale investment securities, gross unrealized losses | [1] | (2) | (12) | |||||||||
Available-for-sale investment securities, fair value | [1] | 488 | [3] | 547 | ||||||||
Held-to-maturity investment securities, amortized cost | [2],[4] | 258 | [3] | 237 | ||||||||
Held-to-maturity investment securities, gross unrealized gains | [2],[4] | 3 | 0 | |||||||||
Held-to-maturity investment securities, gross unrealized losses | [2],[4] | (1) | (4) | |||||||||
Held-to-maturity investment securities, fair value | [2],[4] | $ 260 | [3] | $ 233 | ||||||||
|
Investments (Schedule of Fair Value of Securities in a Continuous Unrealized Loss Position for Less Than 12 Months and More Than 12 Months) (Details) - Residential Mortgage-Backed Securities - Agency [Member] $ in Millions |
Jun. 30, 2019
USD ($)
securities
|
Dec. 31, 2018
USD ($)
securities
|
---|---|---|
Investment Holdings [Line Items] | ||
Available-for-sale investment securities, continuous unrealized loss position, number of securities | securities | 13 | 31 |
Available-for-sale investment securities, continuous unrealized loss position, less than 12 months, fair value | $ 39 | $ 110 |
Available-for-sale investment securities, continuous unrealized loss position, less than 12 months, unrealized losses | 0 | (1) |
Available-for-sale investment securities, continuous unrealized loss position, more than 12 months, fair value | 176 | 437 |
Available-for-sale investment securities, continuous unrealized loss position, more than 12 months, unrealized losses | $ (2) | $ (11) |
Held-to-maturity investment securities, continuous unrealized loss position, number of securities | securities | 51 | 90 |
Held-to-maturity investment securities, continuous unrealized loss position, less than 12 months, fair value | $ 4 | $ 101 |
Held-to-maturity investment securities, continuous unrealized loss position, less than 12 months, unrealized losses | 0 | (1) |
Held-to-maturity investment securities, continuous unrealized loss position, more than 12 months, fair value | 78 | 83 |
Held-to-maturity investment securities, continuous unrealized loss position, more than 12 months, unrealized losses | $ (1) | $ (3) |
Investments (Schedule of Maturities of Available-for-Sale Debt Securities and Held-to-Maturity Debt Securities) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, debt maturities, one year or less, amortized cost | $ 372 | |||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, amortized cost | 5,673 | |||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, amortized cost | 1,129 | |||||||||||
Available-for-sale investment securities, debt maturities, after ten years, amortized cost | 0 | |||||||||||
Available-for-sale investment securities, amortized cost | [1] | 7,174 | $ 3,118 | |||||||||
Held-to-maturity investment securities, debt maturities, one year or less, amortized cost | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after one year through five years, amortized cost | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after five years through ten years, amortized cost | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after ten years, amortized cost | 258 | |||||||||||
Held-to-maturity investment securities, amortized cost | [2] | 258 | 237 | |||||||||
Available-for-sale investment securities, debt maturities, one year or less, fair value | 374 | |||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, fair value | 5,804 | |||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, fair value | 1,145 | |||||||||||
Available-for-sale investment securities, debt maturities, after ten years, fair value | 0 | |||||||||||
Available-for-sale investment securities, fair value | [1] | 7,323 | 3,133 | |||||||||
Held-to-maturity investment securities, debt maturities, one year or less, fair value | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after one year through five years, fair value | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after five years through ten years, fair value | 0 | |||||||||||
Held-to-maturity investment securities, debt maturities, after ten years, fair value | 260 | |||||||||||
Held-to-maturity investment securities, fair value | [2] | 260 | 233 | |||||||||
U.S. Treasury Securities [Member] | ||||||||||||
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, debt maturities, one year or less, amortized cost | 372 | |||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, amortized cost | 5,563 | |||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, amortized cost | 751 | |||||||||||
Available-for-sale investment securities, debt maturities, after ten years, amortized cost | 0 | |||||||||||
Available-for-sale investment securities, amortized cost | [1] | 6,686 | 2,559 | |||||||||
Available-for-sale investment securities, debt maturities, one year or less, fair value | 374 | |||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, fair value | 5,694 | |||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, fair value | 767 | |||||||||||
Available-for-sale investment securities, debt maturities, after ten years, fair value | 0 | |||||||||||
Available-for-sale investment securities, fair value | [1] | 6,835 | 2,586 | |||||||||
Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||
Investment Holdings [Line Items] | ||||||||||||
Available-for-sale investment securities, debt maturities, one year or less, amortized cost | [3] | 0 | ||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, amortized cost | [3] | 110 | ||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, amortized cost | [3] | 378 | ||||||||||
Available-for-sale investment securities, debt maturities, after ten years, amortized cost | [3] | 0 | ||||||||||
Available-for-sale investment securities, amortized cost | [1] | 488 | [3] | 559 | ||||||||
Held-to-maturity investment securities, debt maturities, one year or less, amortized cost | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after one year through five years, amortized cost | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after five years through ten years, amortized cost | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after ten years, amortized cost | [3] | 258 | ||||||||||
Held-to-maturity investment securities, amortized cost | [2],[4] | 258 | [3] | 237 | ||||||||
Available-for-sale investment securities, debt maturities, one year or less, fair value | [3] | 0 | ||||||||||
Available-for-sale investment securities, debt maturities, after one year through five years, fair value | [3] | 110 | ||||||||||
Available-for-sale investment securities, debt maturities, after five years through ten years, fair value | [3] | 378 | ||||||||||
Available-for-sale investment securities, debt maturities, after ten years, fair value | [3] | 0 | ||||||||||
Available-for-sale investment securities, fair value | [1] | 488 | [3] | 547 | ||||||||
Held-to-maturity investment securities, debt maturities, one year or less, fair value | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after one year through five years, fair value | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after five years through ten years, fair value | [3] | 0 | ||||||||||
Held-to-maturity investment securities, debt maturities, after ten years, fair value | [3] | 260 | ||||||||||
Held-to-maturity investment securities, fair value | [2],[4] | $ 260 | [3] | $ 233 | ||||||||
|
Loan Receivables (Narrative) (Details) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019
USD ($)
|
Jun. 30, 2018
USD ($)
|
Jun. 30, 2019
USD ($)
segment
|
Jun. 30, 2018
USD ($)
|
Mar. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
Mar. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Number of loan portfolio segments (in segments) | segment | 3 | ||||||||||||
Private student loan forbearance lifetime cap (in months) | 12 months | ||||||||||||
Private student loans including PCI in forbearance | $ 41 | $ 41 | $ 37 | ||||||||||
Private student loans in forbearance as a percentage of student loans in repayment and forbearance (in percent) | 0.70% | 0.70% | 0.70% | ||||||||||
Private student loans including PCI in repayment | $ 5,500 | $ 5,500 | |||||||||||
Percentage of defaulted loans that were charged off at the end of the month in which they defaulted (in percent) | 39.00% | 34.00% | 39.00% | 36.00% | |||||||||
Provision for loan losses | $ 787 | $ 742 | $ 1,596 | $ 1,493 | |||||||||
Allowance for loan losses | $ 3,202 | $ 2,828 | $ 3,202 | $ 2,828 | $ 3,134 | $ 3,041 | $ 2,736 | $ 2,621 | |||||
Net charge-off rate (in percent) | [1] | 3.22% | 3.11% | 3.23% | 3.10% | ||||||||
Personal Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Maximum period of payment reduction for the temporary reduced payment program (in months) | 12 months | ||||||||||||
Maximum repayment term for temporary modification programs (in years) | 9 years | ||||||||||||
Maximum repayment term for permanent modification programs (in years) | 9 years | ||||||||||||
Credit Card Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Maximum period of payment reduction for the temporary reduced payment program (in months) | 12 months | ||||||||||||
Permanent workout program maturity (in months) | 60 months | ||||||||||||
Interest and fees forgiven due to credit card loan modification program | $ 17 | $ 11 | $ 34 | $ 23 | |||||||||
Provision for loan losses | 692 | 637 | 1,402 | 1,282 | |||||||||
Allowance for loan losses | $ 2,691 | $ 2,334 | $ 2,691 | $ 2,334 | $ 2,622 | 2,528 | $ 2,252 | $ 2,147 | |||||
Net charge-off rate (in percent) | [1] | 3.49% | 3.34% | 3.50% | 3.33% | ||||||||
PCI Student Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Purchased credit-impaired loans outstanding balance | $ 1,500 | $ 1,500 | 1,700 | ||||||||||
Purchased credit-impaired loans | [2] | 1,432 | 1,432 | 1,637 | |||||||||
Provision for loan losses | 0 | $ 0 | 0 | $ 0 | |||||||||
Allowance for loan losses | $ 23 | $ 23 | $ 25 | ||||||||||
Threshold charge-off period for past due accounts (in days) | 120 days | ||||||||||||
Net charge-off rate (in percent) | 0.43% | 0.31% | 0.34% | 0.66% | |||||||||
PCI Student Loans [Member] | 30 or More Days Delinquent [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Delinquency rate on PCI student loans (in percent) | 2.64% | 2.64% | 2.93% | ||||||||||
PCI Student Loans [Member] | 90 or More Days Delinquent [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Delinquency rate on PCI student loans (in percent) | 0.58% | 0.58% | 0.78% | ||||||||||
|
Loan Receivables (Schedule of Loan Receivables) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
|||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | $ 90,229 | $ 90,512 | |||||||||||
Allowance for loan losses | (3,202) | $ (3,134) | (3,041) | $ (2,828) | $ (2,736) | $ (2,621) | |||||||
Net loan receivables | 87,027 | 87,471 | |||||||||||
Variable Interest Entity, Primary Beneficiary [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | 31,564 | 33,424 | |||||||||||
Allowance for loan losses | (1,161) | (1,150) | |||||||||||
Credit Card Securitization Trusts [Member] | Variable Interest Entity, Primary Beneficiary [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Credit card loans | [1] | 31,238 | 33,061 | ||||||||||
Allowance for loan losses | [1] | (1,161) | (1,150) | ||||||||||
Net loan receivables | 30,077 | 31,911 | |||||||||||
Seller's interest | 12,287 | 11,050 | |||||||||||
Student Loan Securitization Trusts [Member] | Variable Interest Entity, Primary Beneficiary [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Purchased credit-impaired loans | 326 | 363 | |||||||||||
Credit Card Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Credit card loans | [2] | 72,393 | 72,876 | ||||||||||
Allowance for loan losses | (2,691) | (2,622) | (2,528) | (2,334) | (2,252) | (2,147) | |||||||
Credit Card Loans [Member] | Credit Card Securitization Trusts [Member] | Variable Interest Entity, Primary Beneficiary [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Investors' interest | 19,000 | 22,000 | |||||||||||
Seller's interest | 12,300 | 11,100 | |||||||||||
Total Other Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | 16,404 | 15,999 | |||||||||||
Total Other Loans [Member] | Personal Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | 7,414 | 7,454 | |||||||||||
Allowance for loan losses | (338) | (338) | (338) | (313) | (301) | (301) | |||||||
Total Other Loans [Member] | Private Student Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | 7,943 | 7,728 | |||||||||||
Total Other Loans [Member] | Other Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loan receivables | 1,047 | 817 | |||||||||||
Allowance for loan losses | (6) | $ (6) | (6) | $ (11) | $ (13) | $ (11) | |||||||
Purchase Credit-Impaired Loans [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Purchased credit-impaired loans | [3] | 1,432 | 1,637 | ||||||||||
Allowance for loan losses | (23) | (25) | |||||||||||
Purchase Credit-Impaired Loans [Member] | Student Loan Securitization Trusts [Member] | Variable Interest Entity, Primary Beneficiary [Member] | |||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||
Loans pledged as collateral | $ 326 | $ 363 | |||||||||||
|
Loan Receivables (Schedule of Delinquent and Non-Accruing Loans) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | $ 1,939 | $ 1,939 | $ 2,049 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | 834 | 834 | 851 | |||||||||||
Loan receivables, total non-accruing | 279 | 279 | 302 | |||||||||||
30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 1,017 | 1,017 | 1,088 | |||||||||||
90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 922 | 922 | 961 | |||||||||||
Credit Card Loans [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 1,692 | 1,692 | 1,772 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | [1] | 772 | 772 | 781 | ||||||||||
Loan receivables, total non-accruing | [2] | 246 | 246 | 266 | ||||||||||
Estimated gross interest income that would have been recorded based on original terms | 11 | $ 10 | 23 | $ 19 | ||||||||||
Credit Card Loans [Member] | Entity Loan Modification Program [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, 90 or more days delinquent and accruing | 135 | 135 | 116 | |||||||||||
Credit Card Loans [Member] | 30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 835 | 835 | 885 | |||||||||||
Credit Card Loans [Member] | 90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 857 | 857 | 887 | |||||||||||
Total Other Loans [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 247 | 247 | 277 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | 62 | 62 | 70 | |||||||||||
Loan receivables, total non-accruing | 33 | 33 | 36 | |||||||||||
Total Other Loans [Member] | 30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 182 | 182 | 203 | |||||||||||
Total Other Loans [Member] | 90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 65 | 65 | 74 | |||||||||||
Total Other Loans [Member] | Personal Loans [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 110 | 110 | 119 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | [3] | 29 | 29 | 33 | ||||||||||
Loan receivables, total non-accruing | 11 | 11 | 11 | |||||||||||
Total Other Loans [Member] | Personal Loans [Member] | Entity Loan Modification Program [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, 90 or more days delinquent and accruing | 6 | 6 | 5 | |||||||||||
Total Other Loans [Member] | Personal Loans [Member] | 30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 79 | 79 | 84 | |||||||||||
Total Other Loans [Member] | Personal Loans [Member] | 90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 31 | 31 | 35 | |||||||||||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 133 | 133 | 155 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | [4] | 33 | 33 | 37 | ||||||||||
Loan receivables, total non-accruing | 8 | 8 | 8 | |||||||||||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | Entity Loan Modification Program [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, 90 or more days delinquent and accruing | 7 | 7 | 7 | |||||||||||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | 30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 100 | 100 | 117 | |||||||||||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | 90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 33 | 33 | 38 | |||||||||||
Total Other Loans [Member] | Other Loans [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 4 | 4 | 3 | |||||||||||
Loan receivables, 90 or more days delinquent and accruing | 0 | 0 | 0 | |||||||||||
Loan receivables, total non-accruing | 14 | 14 | 17 | |||||||||||
Total Other Loans [Member] | Other Loans [Member] | 30-89 Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | 3 | 3 | 2 | |||||||||||
Total Other Loans [Member] | Other Loans [Member] | 90 or More Days Delinquent [Member] | ||||||||||||||
Financing Receivable, Recorded Investment, Past Due [Line Items] | ||||||||||||||
Loan receivables, past due | $ 1 | $ 1 | $ 1 | |||||||||||
|
Loan Receivables (Schedule of Net Charge-offs) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||
---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 718 | $ 649 | $ 1,433 | $ 1,284 | |||
Net charge-off rate (in percent) | [1] | 3.22% | 3.11% | 3.23% | 3.10% | ||
Excluding PCI Loans [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 718 | $ 649 | $ 1,433 | $ 1,284 | |||
Net charge-off rate (in percent) | [1] | 3.27% | 3.18% | 3.29% | 3.18% | ||
Credit Card Loans [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 623 | $ 555 | $ 1,239 | $ 1,095 | |||
Net charge-off rate (in percent) | [1] | 3.49% | 3.34% | 3.50% | 3.33% | ||
Total Other Loans [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 95 | $ 94 | $ 194 | $ 189 | |||
Net charge-off rate (in percent) | [1] | 2.31% | 2.48% | 2.38% | 2.50% | ||
Total Other Loans [Member] | Personal Loans [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 80 | $ 72 | $ 164 | $ 145 | |||
Net charge-off rate (in percent) | [1] | 4.33% | 3.97% | 4.43% | 4.00% | ||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 15 | $ 21 | $ 30 | $ 43 | |||
Net charge-off rate (in percent) | [1] | 0.73% | 1.16% | 0.76% | 1.17% | ||
Total Other Loans [Member] | Other Loans [Member] | |||||||
Charge Offs [Line Items] | |||||||
Net charge-offs | $ 0 | $ 1 | $ 0 | $ 1 | |||
Net charge-off rate (in percent) | [1] | 0.00% | 0.34% | 0.00% | 0.23% | ||
|
Loan Receivables (Schedule of Credit Risk Profile by FICO Score) (Details) |
Jun. 30, 2019 |
Dec. 31, 2018 |
|||
---|---|---|---|---|---|
Credit Card Loans [Member] | FICO Score, 660 and Above [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | 81.00% | 81.00% | |||
Credit Card Loans [Member] | FICO Score, Less Than 660 Or No Score [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | 19.00% | 19.00% | |||
Total Other Loans [Member] | Personal Loans [Member] | FICO Score, 660 and Above [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | 94.00% | 94.00% | |||
Total Other Loans [Member] | Personal Loans [Member] | FICO Score, Less Than 660 Or No Score [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | 6.00% | 6.00% | |||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | FICO Score, 660 and Above [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | [1] | 94.00% | 94.00% | ||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | FICO Score, Less Than 660 Or No Score [Member] | |||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
FICO scores as a percentage of class of loan receivables | [1] | 6.00% | 6.00% | ||
|
Loan Receivables (Schedule of Changes in the Allowance for Loan Losses) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Allowance for loan losses, balance at beginning of period | $ 3,134 | $ 2,736 | $ 3,041 | $ 2,621 | |||||||||
Provision for loan losses | 787 | 742 | 1,596 | 1,493 | |||||||||
Charge-offs | (898) | (789) | (1,785) | (1,558) | |||||||||
Recoveries | 180 | 140 | 352 | 274 | |||||||||
Net charge-offs | (718) | (649) | (1,433) | (1,284) | |||||||||
Other | [1] | (1) | (1) | (2) | (2) | ||||||||
Allowance for loan losses, balance at end of period | 3,202 | 2,828 | 3,202 | 2,828 | |||||||||
Student Loans [Member] | |||||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Allowance for loan losses, balance at beginning of period | [2] | 168 | 170 | 169 | [3] | 162 | |||||||
Provision for loan losses | [2] | 15 | 22 | 30 | 53 | ||||||||
Charge-offs | [2] | (18) | (24) | (37) | (49) | ||||||||
Recoveries | [2] | 3 | 3 | 7 | 6 | ||||||||
Net charge-offs | [2] | (15) | (21) | (30) | (43) | ||||||||
Other | [1] | (1) | (1) | (2) | (2) | ||||||||
Allowance for loan losses, balance at end of period | [2] | 167 | [3] | 170 | 167 | [3] | 170 | ||||||
Credit Card Loans [Member] | |||||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Allowance for loan losses, balance at beginning of period | 2,622 | 2,252 | 2,528 | 2,147 | |||||||||
Provision for loan losses | 692 | 637 | 1,402 | 1,282 | |||||||||
Charge-offs | (789) | (684) | (1,563) | (1,347) | |||||||||
Recoveries | 166 | 129 | 324 | 252 | |||||||||
Net charge-offs | (623) | (555) | (1,239) | (1,095) | |||||||||
Other | 0 | 0 | 0 | 0 | |||||||||
Allowance for loan losses, balance at end of period | 2,691 | 2,334 | 2,691 | 2,334 | |||||||||
Total Other Loans [Member] | |||||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Net charge-offs | (95) | (94) | (194) | (189) | |||||||||
Total Other Loans [Member] | Personal Loans [Member] | |||||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Allowance for loan losses, balance at beginning of period | 338 | 301 | 338 | 301 | |||||||||
Provision for loan losses | 80 | 84 | 164 | 157 | |||||||||
Charge-offs | (91) | (80) | (185) | (161) | |||||||||
Recoveries | 11 | 8 | 21 | 16 | |||||||||
Net charge-offs | (80) | (72) | (164) | (145) | |||||||||
Other | 0 | 0 | 0 | 0 | |||||||||
Allowance for loan losses, balance at end of period | 338 | 313 | 338 | 313 | |||||||||
Total Other Loans [Member] | Other Loans [Member] | |||||||||||||
Allowance for Loan and Lease Losses [Roll Forward] | |||||||||||||
Allowance for loan losses, balance at beginning of period | 6 | 13 | 6 | 11 | |||||||||
Provision for loan losses | 0 | (1) | 0 | 1 | |||||||||
Charge-offs | 0 | (1) | 0 | (1) | |||||||||
Recoveries | 0 | 0 | 0 | 0 | |||||||||
Net charge-offs | 0 | (1) | 0 | (1) | |||||||||
Other | 0 | 0 | 0 | 0 | |||||||||
Allowance for loan losses, balance at end of period | $ 6 | $ 11 | $ 6 | $ 11 | |||||||||
|
Loan Receivables (Schedule of Net Charge-offs of Interest and Fee Revenues on Loan Receivables) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Loans and Leases Receivable Disclosure [Abstract] | ||||
Interest and fees accrued subsequently charged off, net of recoveries (recorded as a reduction of interest income) | $ 128 | $ 110 | $ 255 | $ 219 |
Fees accrued subsequently charged off, net of recoveries (recorded as a reduction to other income) | $ 30 | $ 28 | $ 61 | $ 55 |
Loan Receivables (Schedule of Allowance for Loan Losses and Recorded Investment in its Loan Portfolio by Impairment Methodology) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
|||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loan losses, collectively evaluated for impairment in accordance with ASC 450-20 | $ 2,667 | $ 2,646 | |||||||||||||||||
Allowance for loan losses, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 512 | 370 | ||||||||||||||||
Total allowance for loan losses | 3,202 | $ 3,134 | 3,041 | $ 2,828 | $ 2,736 | $ 2,621 | |||||||||||||
Recorded investment in loans, collectively evaluated for impairment in accordance with ASC 450-20 | 85,525 | 86,237 | |||||||||||||||||
Recorded investment in loans, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 3,272 | 2,638 | ||||||||||||||||
Loan receivables | 90,229 | 90,512 | |||||||||||||||||
Financial Asset Acquired with Credit Deterioration [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loans losses, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 23 | 25 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 1,432 | 1,637 | |||||||||||||||||
Student Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Total allowance for loan losses | [3] | 167 | [4] | 168 | 169 | [4] | 170 | 170 | 162 | ||||||||||
Total recorded investment | [4] | 9,375 | 9,365 | ||||||||||||||||
Credit Card Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loan losses, collectively evaluated for impairment in accordance with ASC 450-20 | 2,265 | 2,229 | |||||||||||||||||
Allowance for loan losses, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 426 | 299 | ||||||||||||||||
Total allowance for loan losses | 2,691 | 2,622 | 2,528 | 2,334 | 2,252 | 2,147 | |||||||||||||
Recorded investment in loans, collectively evaluated for impairment in accordance with ASC 450-20 | 69,583 | 70,628 | |||||||||||||||||
Recorded investment in loans, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 2,810 | 2,248 | ||||||||||||||||
Total recorded investment | 72,393 | 72,876 | |||||||||||||||||
Unpaid principal balance of modified loans accounted for as troubled debt restructurings | 2,500 | 2,000 | |||||||||||||||||
Credit Card Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loans losses, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
Total Other Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Loan receivables | 16,404 | 15,999 | |||||||||||||||||
Total Other Loans [Member] | Personal Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loan losses, collectively evaluated for impairment in accordance with ASC 450-20 | 282 | 292 | |||||||||||||||||
Allowance for loan losses, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 56 | 46 | ||||||||||||||||
Total allowance for loan losses | 338 | 338 | 338 | 313 | 301 | 301 | |||||||||||||
Recorded investment in loans, collectively evaluated for impairment in accordance with ASC 450-20 | 7,233 | 7,302 | |||||||||||||||||
Recorded investment in loans, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 181 | 152 | ||||||||||||||||
Total recorded investment | 7,414 | 7,454 | |||||||||||||||||
Loan receivables | 7,414 | 7,454 | |||||||||||||||||
Total Other Loans [Member] | Personal Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loans losses, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
Total Other Loans [Member] | Private Student Loans (Excluding PCI) [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loan losses, collectively evaluated for impairment in accordance with ASC 450-20 | 116 | 121 | |||||||||||||||||
Allowance for loan losses, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 28 | 23 | ||||||||||||||||
Recorded investment in loans, collectively evaluated for impairment in accordance with ASC 450-20 | 7,715 | 7,546 | |||||||||||||||||
Recorded investment in loans, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 228 | 182 | ||||||||||||||||
Loan receivables | 7,943 | 7,728 | |||||||||||||||||
Total Other Loans [Member] | Other Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loan losses, collectively evaluated for impairment in accordance with ASC 450-20 | 4 | 4 | |||||||||||||||||
Allowance for loan losses, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 2 | 2 | ||||||||||||||||
Total allowance for loan losses | 6 | $ 6 | 6 | $ 11 | $ 13 | $ 11 | |||||||||||||
Recorded investment in loans, collectively evaluated for impairment in accordance with ASC 450-20 | 994 | 761 | |||||||||||||||||
Recorded investment in loans, evaluated for impairment in accordance with ASC 310-10-35 | [1],[2] | 53 | 56 | ||||||||||||||||
Total recorded investment | 1,047 | 817 | |||||||||||||||||
Loan receivables | 1,047 | 817 | |||||||||||||||||
Total Other Loans [Member] | Other Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loans losses, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 0 | 0 | |||||||||||||||||
PCI Student Loans [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Total allowance for loan losses | 23 | 25 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | [5] | 1,432 | 1,637 | ||||||||||||||||
PCI Student Loans [Member] | Financial Asset Acquired with Credit Deterioration [Member] | |||||||||||||||||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||||||||||||||||
Allowance for loans losses, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | 23 | 25 | |||||||||||||||||
Recorded investment in loans, acquired with deteriorated credit quality, evaluated in accordance with ASC 310-30 | $ 1,432 | $ 1,637 | |||||||||||||||||
|
Loan Receivables (Schedule of Troubled Debt Restructurings) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
||||||||
Credit Card Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | [1] | $ 2,680 | $ 1,604 | $ 2,541 | $ 1,507 | ||||||
Interest income recognized during period loans were impaired | [1],[2] | 82 | 41 | 152 | 75 | ||||||
Gross interest income that would have been recorded with original terms | [1],[3] | 50 | 32 | 95 | 58 | ||||||
Credit Card Loans [Member] | Loans no longer in a modification program | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 834 | 397 | 756 | 391 | |||||||
Total Other Loans [Member] | Personal Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 173 | 125 | 166 | 120 | |||||||
Interest income recognized during period loans were impaired | [2] | 4 | 3 | 8 | 6 | ||||||
Gross interest income that would have been recorded with original terms | [3] | 2 | 2 | 4 | 3 | ||||||
Total Other Loans [Member] | Private Student Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Average recorded investment in loans | 215 | 153 | 204 | 147 | |||||||
Interest income recognized during period loans were impaired | [2] | 4 | 3 | 8 | 6 | ||||||
Gross interest income that would have been recorded with original terms | [3] | $ 0 | $ 0 | $ 0 | $ 0 | ||||||
|
Loan Receivables (Schedule of Loans That Entered a Modification Program During the Period) (Details) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019
USD ($)
accounts
|
Jun. 30, 2018
USD ($)
accounts
|
Jun. 30, 2019
USD ($)
accounts
|
Jun. 30, 2018
USD ($)
accounts
|
|
Credit Card Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Accounts that entered a loan modification program during the period, number of accounts (in accounts) | accounts | 84,568 | 56,003 | 176,924 | 116,058 |
Accounts that entered a loan modification program during the period, balances | $ | $ 551 | $ 363 | $ 1,143 | $ 743 |
Total Other Loans [Member] | Personal Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Accounts that entered a loan modification program during the period, number of accounts (in accounts) | accounts | 2,670 | 1,836 | 5,270 | 3,964 |
Accounts that entered a loan modification program during the period, balances | $ | $ 36 | $ 23 | $ 71 | $ 52 |
Total Other Loans [Member] | Private Student Loans [Member] | ||||
Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
Accounts that entered a loan modification program during the period, number of accounts (in accounts) | accounts | 1,710 | 1,046 | 3,286 | 1,952 |
Accounts that entered a loan modification program during the period, balances | $ | $ 30 | $ 21 | $ 61 | $ 37 |
Loan Receivables (Schedule of Troubled Debt Restructurings That Subsequently Defaulted) (Details) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019
USD ($)
accounts
|
Jun. 30, 2018
USD ($)
accounts
|
Jun. 30, 2019
USD ($)
missed_payments
accounts
|
Jun. 30, 2018
USD ($)
accounts
|
||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Amount of missed payments after which a customer defaults from a modification program (in payments) | missed_payments | 2 | ||||||||||
Credit Card Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Troubled debt restructurings that subsequently defaulted, number of accounts (in accounts) | accounts | [1],[2] | 16,220 | 8,970 | 31,872 | 17,784 | ||||||
Troubled debt restructurings that subsequently defaulted, aggregated outstanding balances upon default | $ | [1],[2] | $ 95 | $ 49 | $ 185 | $ 96 | ||||||
Total Other Loans [Member] | Personal Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Troubled debt restructurings that subsequently defaulted, number of accounts (in accounts) | accounts | [2] | 946 | 637 | 1,794 | 1,212 | ||||||
Troubled debt restructurings that subsequently defaulted, aggregated outstanding balances upon default | $ | [2] | $ 14 | $ 8 | $ 27 | $ 16 | ||||||
Total Other Loans [Member] | Private Student Loans [Member] | |||||||||||
Financing Receivable, Modifications [Line Items] | |||||||||||
Troubled debt restructurings that subsequently defaulted, number of accounts (in accounts) | accounts | [3] | 290 | 204 | 570 | 475 | ||||||
Troubled debt restructurings that subsequently defaulted, aggregated outstanding balances upon default | $ | [3] | $ 6 | $ 3 | $ 11 | $ 8 | ||||||
Delinquency days to default (in days) | 60 days | ||||||||||
|
Loan Receivables (Schedule of Changes in Accretable Yield for the Acquired Loans) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] | ||||
Accretable yield, balance at beginning of period | $ 538 | $ 633 | $ 548 | $ 669 |
Accretion into interest income | (31) | (36) | (63) | (72) |
Other changes in expected cash flows | 1 | 11 | 23 | 11 |
Accretable yield, balance at end of period | $ 508 | $ 608 | $ 508 | $ 608 |
Credit Card and Student Loan Securitization Activities (Narrative) (Details) |
6 Months Ended |
---|---|
Jun. 30, 2019
classes
trust
| |
Student Loan Securitization Trusts [Member] | |
Variable Interest Entity [Line Items] | |
Number of trusts issuing securities | trust | 1 |
Discover Card Execution Note Trust [Member] | Credit Card Securitization Trusts [Member] | |
Variable Interest Entity [Line Items] | |
Number of classes of securities in debt structure (in classes) | classes | 4 |
Credit Card and Student Loan Securitization Activities (Schedule of Restricted Credit Card Securitized Assets) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
|||
---|---|---|---|---|---|---|---|---|---|
Variable Interest Entity [Line Items] | |||||||||
Restricted cash | $ 1,040 | $ 1,846 | $ 630 | ||||||
Allowance for loan losses allocated to securitized loan receivables | (3,202) | $ (3,134) | (3,041) | $ (2,828) | $ (2,736) | $ (2,621) | |||
Net loan receivables | 87,027 | 87,471 | |||||||
Other | 2,323 | 2,215 | |||||||
Variable Interest Entity, Primary Beneficiary [Member] | |||||||||
Variable Interest Entity [Line Items] | |||||||||
Restricted cash | 1,040 | 1,846 | |||||||
Allowance for loan losses allocated to securitized loan receivables | (1,161) | (1,150) | |||||||
Other | 8 | 7 | |||||||
Variable Interest Entity, Primary Beneficiary [Member] | Credit Card Securitization Trusts [Member] | |||||||||
Variable Interest Entity [Line Items] | |||||||||
Restricted cash | 1,029 | 1,834 | |||||||
Investors' interests held by third-party investors | 14,000 | 16,800 | |||||||
Investors' interests held by wholly-owned subsidiaries of Discover Bank | 4,951 | 5,211 | |||||||
Seller's interest | 12,287 | 11,050 | |||||||
Loan receivables | [1] | 31,238 | 33,061 | ||||||
Allowance for loan losses allocated to securitized loan receivables | [1] | (1,161) | (1,150) | ||||||
Net loan receivables | 30,077 | 31,911 | |||||||
Other | 8 | 7 | |||||||
Carrying value of assets of consolidated variable interest entities | $ 31,114 | $ 33,752 | |||||||
|
Credit Card and Student Loan Securitization Activities (Schedule of Restricted Student Loan Securitized Assets) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
---|---|---|---|
Variable Interest Entity [Line Items] | |||
Restricted cash | $ 1,040 | $ 1,846 | $ 630 |
Variable Interest Entity, Primary Beneficiary [Member] | |||
Variable Interest Entity [Line Items] | |||
Restricted cash | 1,040 | 1,846 | |
Variable Interest Entity, Primary Beneficiary [Member] | Student Loan Securitization Trusts [Member] | |||
Variable Interest Entity [Line Items] | |||
Restricted cash | 11 | 12 | |
Purchased credit-impaired loans | 326 | 363 | |
Carrying value of assets of consolidated variable interest entities | $ 337 | $ 375 |
Deposits (Narrative) (Details) |
6 Months Ended |
---|---|
Jun. 30, 2019
channels
| |
Deposits [Abstract] | |
Deposits source channels (in number of channels) | 2 |
Deposits (Schedule of Interest Bearing Deposit Accounts) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||
---|---|---|---|---|
Deposits [Abstract] | ||||
Certificates of deposit in amounts less than $100,000 | $ 25,909 | $ 27,947 | ||
Certificates of deposit in amounts $100,000 or greater | [1] | 7,789 | 6,841 | |
Savings deposits, including money market deposit accounts | 35,366 | 32,296 | ||
Total interest-bearing deposits | 69,064 | 67,084 | ||
Certificates of deposit equal to or greater than $250,000 | $ 2,000 | $ 1,700 | ||
|
Deposits (Schedule of $100,000 or More Certificates of Deposit Maturities) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||
---|---|---|---|---|
Deposits [Abstract] | ||||
Three months or less | $ 1,285 | |||
Over three months through six months | 1,293 | |||
Over six months through twelve months | 2,921 | |||
Over twelve months | 2,290 | |||
Total | [1] | $ 7,789 | $ 6,841 | |
|
Deposits (Schedule of Certificates of Deposit Maturities) (Details) $ in Millions |
Jun. 30, 2019
USD ($)
|
---|---|
Deposits [Abstract] | |
2019 | $ 8,037 |
2020 | 12,269 |
2021 | 5,678 |
2022 | 3,002 |
2023 | 1,860 |
Thereafter | 2,852 |
Total | $ 33,698 |
Long-Term Borrowings (Narrative) (Details) - Discover Card Master Trust I and Discover Card Execution Note Trust [Member] - Securitized Debt [Member] $ in Millions |
Jun. 30, 2019
USD ($)
|
---|---|
Debt Instrument [Line Items] | |
Total commitment of secured credit facilities | $ 6,000 |
Total used commitment of secured credit facilities | $ 0 |
Long-Term Borrowings (Schedule of Long-Term Borrowings and Weighted Average Interest Rates) (Details) - USD ($) $ in Millions |
6 Months Ended | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Dec. 31, 2018 |
|||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term borrowings (in dollars) | $ 25,163 | $ 27,228 | ||||||||||||
Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term borrowings (in dollars) | 14,214 | 16,917 | ||||||||||||
Securitized Debt [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term borrowings (in dollars) | 14,214 | 16,917 | ||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term borrowings (in dollars) | $ 14,036 | 16,720 | ||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Fixed-Rate Asset-Backed Securities [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 2.34% | |||||||||||||
Long-term borrowings (in dollars) | [1] | $ 9,821 | 10,657 | |||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Fixed-Rate Asset-Backed Securities [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 1.39% | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Fixed-Rate Asset-Backed Securities [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 3.32% | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating-Rate Asset-Backed Securities [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 2.80% | |||||||||||||
Long-term borrowings (in dollars) | [3] | $ 4,215 | [2] | 6,063 | ||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating-Rate Asset-Backed Securities [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 2.62% | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating-Rate Asset-Backed Securities [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 2.99% | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating Rate Asset Backed Securities 1-Month LIBOR Plus 23 to 60 Basis Points [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate terms | 1-month LIBOR + 23 to 60 basis points | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating Rate Asset Backed Securities 1-Month LIBOR Plus 23 to 60 Basis Points [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread on variable rate | 0.23% | |||||||||||||
Securitized Debt [Member] | Discover Card Master Trust I and Discover Card Execution Note Trust [Member] | Floating Rate Asset Backed Securities 1-Month LIBOR Plus 23 to 60 Basis Points [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Basis spread on variable rate | 0.60% | |||||||||||||
Securitized Debt [Member] | SLC Private Student Loan Trust [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term borrowings (in dollars) | $ 178 | 197 | ||||||||||||
Securitized Debt [Member] | SLC Private Student Loan Trust [Member] | Floating-Rate Asset-Backed Securities [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 6.50% | |||||||||||||
Weighted-average interest rate | 6.50% | |||||||||||||
Long-term borrowings (in dollars) | [4] | $ 178 | [5] | 197 | ||||||||||
Securitized Debt [Member] | SLC Private Student Loan Trust [Member] | Floating Rate Asset Backed Securities Prime Rate Plus 100 Basis Points [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate terms | Prime rate + 100 basis points | |||||||||||||
Basis spread on variable rate | 1.00% | |||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Senior Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 4.30% | |||||||||||||
Long-term borrowings (in dollars) | $ 3,356 | 2,743 | ||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Senior Notes [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 3.75% | |||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Senior Notes [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 10.25% | |||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Retail Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 3.73% | |||||||||||||
Long-term borrowings (in dollars) | $ 339 | 346 | ||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Retail Notes [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 2.85% | |||||||||||||
Corporate Debt Securities [Member] | Parent Company [Member] | Fixed-Rate Retail Notes [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 4.60% | |||||||||||||
Senior Notes [Member] | Discover Bank [Member] | Fixed-Rate Senior Bank Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 3.69% | |||||||||||||
Long-term borrowings (in dollars) | [1] | $ 6,058 | 6,027 | |||||||||||
Senior Notes [Member] | Discover Bank [Member] | Fixed-Rate Senior Bank Notes [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 3.10% | |||||||||||||
Senior Notes [Member] | Discover Bank [Member] | Fixed-Rate Senior Bank Notes [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 4.65% | |||||||||||||
Subordinated Debt [Member] | Discover Bank [Member] | Fixed-Rate Subordinated Bank Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Weighted-average interest rate | 6.32% | |||||||||||||
Long-term borrowings (in dollars) | $ 1,196 | $ 1,195 | ||||||||||||
Subordinated Debt [Member] | Discover Bank [Member] | Fixed-Rate Subordinated Bank Notes [Member] | Minimum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 4.68% | |||||||||||||
Subordinated Debt [Member] | Discover Bank [Member] | Fixed-Rate Subordinated Bank Notes [Member] | Maximum [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Interest rate | 8.70% | |||||||||||||
|
Long-Term Borrowings (Schedule of Long-Term Borrowings Maturities) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Debt Disclosure [Abstract] | ||
2019 | $ 2,475 | |
2020 | 4,739 | |
2021 | 3,417 | |
2022 | 4,110 | |
2023 | 3,329 | |
Thereafter | 7,093 | |
Total | $ 25,163 | $ 27,228 |
Accumulated Other Comprehensive Income (Schedule of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||
---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||
Accumulated other comprehensive income (loss), net of tax, balance at beginning of period | $ (156) | ||||||
Cumulative effect of ASU No. 2018-02 adoption | $ 0 | $ 0 | |||||
Net change in accumulated other comprehensive income (loss), net of tax | $ 53 | 6 | 73 | 19 | |||
Accumulated other comprehensive income (loss), net of tax, balance at end of period | (83) | (83) | |||||
Unrealized Gains (Losses) on Available-for-Sale Investment Securities, Net of Tax [Member] | |||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||
Accumulated other comprehensive income (loss), net of tax, balance at beginning of period | 41 | (12) | 10 | (5) | |||
Cumulative effect of ASU No. 2018-02 adoption | [1] | (1) | (1) | ||||
Net change in accumulated other comprehensive income (loss), net of tax | 71 | (1) | 102 | (8) | |||
Accumulated other comprehensive income (loss), net of tax, balance at end of period | 112 | (14) | 112 | (14) | |||
Gains (Losses) on Cash Flow Hedges, Net of Tax [Member] | |||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||
Accumulated other comprehensive income (loss), net of tax, balance at beginning of period | 10 | 29 | 22 | 10 | |||
Cumulative effect of ASU No. 2018-02 adoption | [1] | 3 | 3 | ||||
Net change in accumulated other comprehensive income (loss), net of tax | (18) | 7 | (30) | 26 | |||
Accumulated other comprehensive income (loss), net of tax, balance at end of period | (8) | 39 | (8) | 39 | |||
Gains (Losses) on Pension Plan, Net of Tax [Member] | |||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||
Accumulated other comprehensive income (loss), net of tax, balance at beginning of period | (187) | (156) | (188) | (157) | |||
Cumulative effect of ASU No. 2018-02 adoption | [1] | (31) | (31) | ||||
Net change in accumulated other comprehensive income (loss), net of tax | 0 | 0 | 1 | 1 | |||
Accumulated other comprehensive income (loss), net of tax, balance at end of period | (187) | (187) | (187) | (187) | |||
AOCI | |||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | |||||||
Accumulated other comprehensive income (loss), net of tax, balance at beginning of period | (136) | (139) | (156) | (152) | |||
Cumulative effect of ASU No. 2018-02 adoption | [1] | (29) | (29) | ||||
Net change in accumulated other comprehensive income (loss), net of tax | 53 | 6 | 73 | 19 | |||
Accumulated other comprehensive income (loss), net of tax, balance at end of period | $ (83) | $ (162) | $ (83) | $ (162) | |||
|
Accumulated Other Comprehensive Income (Schedule of Other Comprehensive Income Before Reclassifications and Amounts Reclassified from AOCI) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||||
Available-for-sale investment securities, net unrealized holding gains (losses) arising during the period, before tax | $ 94 | $ (1) | $ 134 | $ (10) |
Available-for-sale investment securities, net unrealized holding gains (losses) arising during the period, tax benefit (expense) | (23) | 0 | (32) | 2 |
Available-for-sale investment securities, net unrealized holding gains (losses) arising during the period, net of tax | 71 | (1) | 102 | (8) |
Available-for-sale investment securities, net change, before tax | 94 | (1) | 134 | (10) |
Available-for-sale investment securities, net change, tax benefit (expense) | (23) | 0 | (32) | 2 |
Available-for-sale investment securities, net change, net of tax | 71 | (1) | 102 | (8) |
Cash flow hedges, net unrealized gains (losses) arising during the period, before tax | (22) | 10 | (35) | 34 |
Cash flow hedges, net unrealized gains (losses) arising during the period, tax benefit (expense) | 6 | (2) | 9 | (8) |
Cash flow hedges, net unrealized gains (losses) arising during the period, net of tax | (16) | 8 | (26) | 26 |
Cash flow hedges, amounts reclassified from AOCI, before tax | (2) | (1) | (5) | |
Cash flow hedges, amounts reclassified from AOCI, tax benefit (expense) | 0 | 0 | 1 | |
Cash flow hedges, amounts reclassified from AOCI, net of tax | (2) | (1) | (4) | |
Cash flow hedges, net change, before tax | (24) | 9 | (40) | 34 |
Cash flow hedges, net change, tax benefit (expense) | 6 | (2) | 10 | (8) |
Cash flow hedges, net change, net of tax | $ (18) | $ 7 | (30) | 26 |
Pension plan, unrealized gains (losses) arising during the period, before tax | 1 | 1 | ||
Pension plan, unrealized gains (losses) arising during the period, tax benefit (expense) | 0 | 0 | ||
Pension plan, unrealized gains (losses) arising during the period, net of tax | 1 | 1 | ||
Pension plan, net change, before tax | 1 | 1 | ||
Pension plan, net change, tax benefit (expense) | 0 | 0 | ||
Pension plan, net change, net of tax | $ 1 | $ 1 |
Income Taxes (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended |
---|---|---|
Jun. 30, 2019 |
Jun. 30, 2019 |
|
Income Tax Disclosure [Abstract] | ||
Change in income tax expense | $ 26 | $ 40 |
Income Taxes (Schedule of Effective Income Tax Rate Calculation) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Income Tax Disclosure [Abstract] | ||||
Income before income tax expense | $ 987 | $ 877 | $ 1,917 | $ 1,733 |
Income tax expense | $ 234 | $ 208 | $ 438 | $ 398 |
Effective income tax rate (in percent) | 23.80% | 23.70% | 22.90% | 23.00% |
Earnings Per Share (Narrative) (Details) - shares shares in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Earnings Per Share [Abstract] | ||||
Anti-dilutive securities on the computation of diluted EPS | 0 | 0 | 0 | 0 |
Earnings Per Share (Schedule of Basic and Diluted EPS ) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Numerator: | ||||
Net income | $ 753 | $ 669 | $ 1,479 | $ 1,335 |
Preferred stock dividends | 0 | 0 | (16) | (16) |
Net income available to common stockholders | 753 | 669 | 1,463 | 1,319 |
Income allocated to participating securities | (6) | (6) | (11) | (10) |
Net income allocated to common stockholders | 747 | 663 | 1,452 | 1,309 |
Income allocated to participating securities, diluted | (6) | (6) | (11) | (10) |
Net income allocated to common stockholders, diluted | $ 747 | $ 663 | $ 1,452 | $ 1,309 |
Denominator: | ||||
Weighted-average shares of common stock outstanding | 322 | 348 | 325 | 351 |
Effect of dilutive common stock equivalents | 1 | 0 | 1 | 0 |
Weighted-average shares of common stock outstanding and common stock equivalents | 323 | 348 | 326 | 351 |
Basic earnings per common share (in dollars per share) | $ 2.32 | $ 1.91 | $ 4.46 | $ 3.73 |
Diluted earnings per common share (in dollars per share) | $ 2.32 | $ 1.91 | $ 4.46 | $ 3.72 |
Capital Adequacy (Schedule of Minimum and Well-Capitalized Requirements) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
|||||
---|---|---|---|---|---|---|---|
Discover Bank [Member] | |||||||
Compliance with Regulatory Capital Requirements [Line Items] | |||||||
Total capital to risk-weighted assets, actual amount | $ 13,218 | $ 13,106 | |||||
Total capital to risk-weighted assets, actual ratio (in percent) | [1] | 14.40% | |||||
Total capital to risk-weighted assets, minimum capital requirements, amount | $ 7,351 | $ 7,372 | |||||
Total capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 8.00% | 8.00% | |||||
Total capital to risk-weighted assets, capital requirements to be classified as well-capitalized, amount | $ 9,188 | $ 9,215 | |||||
Total capital to risk-weighted assets, capital requirements to be classified as well-capitalized, ratio (in percent) | 10.00% | 10.00% | |||||
Tier I capital to risk-weighted assets, actual amount | $ 11,047 | $ 10,834 | |||||
Tier I capital to risk-weighted assets, actual ratio (in percent) | [1] | 12.00% | |||||
Tier I capital to risk-weighted assets, minimum capital requirements, amount | $ 5,513 | $ 5,529 | |||||
Tier I capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 6.00% | 6.00% | |||||
Tier I capital to risk-weighted assets, capital requirements to be classified as well-capitalized, amount | $ 7,351 | $ 7,372 | |||||
Tier I capital to risk-weighted assets, capital requirements to be classified as well-capitalized, ratio (in percent) | 8.00% | 8.00% | |||||
Tier I capital to average assets, actual amount | $ 11,047 | $ 10,834 | |||||
Tier I capital to average assets, actual ratio (in percent) | [1] | 10.10% | |||||
Tier I capital to average assets, minimum capital requirements, amount | $ 4,355 | $ 4,265 | |||||
Tier I capital to average assets, minimum capital requirements, ratio (in percent) | 4.00% | 4.00% | |||||
Tier I capital to average assets, capital requirements to be classified as well-capitalized, amount | $ 5,444 | $ 5,332 | |||||
Tier I capital to average assets, capital requirements to be classified as well-capitalized, ratio (in percent) | 5.00% | 5.00% | |||||
CET1 capital to risk-weighted assets, actual amount | $ 11,047 | $ 10,834 | |||||
CET1 capital to risk-weighted assets, actual ratio (in percent) | [1] | 12.00% | |||||
CET1 capital to risk-weighted assets, minimum capital requirements, amount | $ 4,135 | $ 4,147 | |||||
CET1 capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 4.50% | 4.50% | |||||
CET1 capital to risk-weighted assets, capital requirements to be classified as well-capitalized, amount | $ 5,972 | $ 5,990 | |||||
CET1 capital to risk-weighted assets, capital requirements to be classified as well-capitalized, ratio (in percent) | 6.50% | 6.50% | |||||
Parent Company [Member] | |||||||
Compliance with Regulatory Capital Requirements [Line Items] | |||||||
Total capital to risk-weighted assets, actual amount | $ 12,765 | $ 12,532 | |||||
Total capital to risk-weighted assets, minimum capital requirements, amount | $ 7,436 | $ 7,450 | |||||
Total capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 8.00% | 8.00% | |||||
Total capital to risk-weighted assets, capital requirements to be classified as well-capitalized, amount | [2] | $ 9,295 | $ 9,312 | ||||
Total capital to risk-weighted assets, capital requirements to be classified as well-capitalized, ratio (in percent) | [2] | 10.00% | 10.00% | ||||
Tier I capital to risk-weighted assets, actual amount | $ 11,188 | $ 10,895 | |||||
Tier I capital to risk-weighted assets, actual ratio (in percent) | [1] | 12.00% | |||||
Tier I capital to risk-weighted assets, minimum capital requirements, amount | $ 5,577 | $ 5,587 | |||||
Tier I capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 6.00% | 6.00% | |||||
Tier I capital to risk-weighted assets, capital requirements to be classified as well-capitalized, amount | [2] | $ 5,577 | $ 5,587 | ||||
Tier I capital to risk-weighted assets, capital requirements to be classified as well-capitalized, ratio (in percent) | [2] | 6.00% | 6.00% | ||||
Tier I capital to average assets, actual amount | $ 11,188 | $ 10,895 | |||||
Tier I capital to average assets, actual ratio (in percent) | [1] | 10.20% | |||||
Tier I capital to average assets, minimum capital requirements, amount | $ 4,404 | $ 4,308 | |||||
Tier I capital to average assets, minimum capital requirements, ratio (in percent) | 4.00% | 4.00% | |||||
CET1 capital to risk-weighted assets, actual amount | $ 10,625 | $ 10,332 | |||||
CET1 capital to risk-weighted assets, actual ratio (in percent) | [1] | 11.40% | |||||
CET1 capital to risk-weighted assets, minimum capital requirements, amount | $ 4,183 | $ 4,191 | |||||
CET1 capital to risk-weighted assets, minimum capital requirements, ratio (in percent) | 4.50% | 4.50% | |||||
Transition [Member] | Discover Bank [Member] | |||||||
Compliance with Regulatory Capital Requirements [Line Items] | |||||||
Total capital to risk-weighted assets, actual ratio (in percent) | [1] | 14.20% | |||||
Tier I capital to risk-weighted assets, actual ratio (in percent) | [1] | 11.80% | |||||
Tier I capital to average assets, actual ratio (in percent) | [1] | 10.20% | |||||
CET1 capital to risk-weighted assets, actual ratio (in percent) | [1] | 11.80% | |||||
Transition [Member] | Parent Company [Member] | |||||||
Compliance with Regulatory Capital Requirements [Line Items] | |||||||
Total capital to risk-weighted assets, actual ratio (in percent) | [1] | 13.70% | 13.50% | ||||
Tier I capital to risk-weighted assets, actual ratio (in percent) | [1] | 11.70% | |||||
Tier I capital to average assets, actual ratio (in percent) | [1] | 10.10% | |||||
CET1 capital to risk-weighted assets, actual ratio (in percent) | [1] | 11.10% | |||||
|
Commitments, Contingencies and Guarantees (Narrative) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Commitments, Contingencies and Guarantees [Line Items] | ||
Guarantor obligations, maximum exposure, undiscounted | $ 170 | |
Escrow deposits and settlement withholdings | 11 | $ 10 |
Commitments to Extend Credit [Member] | ||
Commitments, Contingencies and Guarantees [Line Items] | ||
Unused commitments to extend credit for loans | $ 204,000 |
Commitments, Contingencies and Guarantees (Schedule of Merchant Chargeback Guarantee) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|||
Merchant Chargeback Guarantees [Member] | ||||||
Loss Contingencies [Line Items] | ||||||
Aggregate sales transaction volume | [1] | $ 42,831 | $ 39,977 | $ 81,590 | $ 75,994 | |
|
Litigation and Regulatory Matters (Narrative) (Details) - USD ($) $ in Millions |
Jul. 22, 2015 |
Jun. 30, 2019 |
---|---|---|
Unfavorable Regulatory Action [Member] | Consumer Financial Protection Bureau Consent Order [Member] | ||
Loss Contingencies [Line Items] | ||
Amount of civil money penalty for consent order | $ 2.5 | |
Maximum [Member] | Pending and Threatened Litigation [Member] | ||
Loss Contingencies [Line Items] | ||
Aggregate range of reasonably possible losses | $ 100.0 | |
Minimum [Member] | Unfavorable Regulatory Action [Member] | Consumer Financial Protection Bureau Consent Order [Member] | ||
Loss Contingencies [Line Items] | ||
Aggregate range of reasonably possible losses | $ 16.0 |
Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Residential Mortgage-Backed Securities - Agency [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Available for sale securities, par value | $ 479 | $ 479 | ||
Available for sale securities, weighted average coupon rate (in percent) | 2.81% | 2.81% | ||
Available for sale securities, weighted average remaining maturity (in years) | 3 years | |||
Fair Value, Measurements, Recurring [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Asset transfers from level 1 to level 2 within the fair value hierarchy | $ 0 | $ 0 | $ 0 | $ 0 |
Asset transfers from level 2 to level 1 within the fair value hierarchy | 0 | 0 | 0 | 0 |
Liability transfers from level 1 to level 2 within the fair value hierarchy | 0 | 0 | 0 | 0 |
Liability transfers from level 2 to level 1 within the fair value hierarchy | 0 | 0 | 0 | 0 |
Fair Value, Measurements, Nonrecurring [Member] | ||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Impairment of assets measured at fair value on a non-recurring basis | $ 0 | $ 0 | $ 0 | $ 0 |
Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||||||||
---|---|---|---|---|---|---|---|---|---|---|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | [1] | $ 7,323 | $ 3,133 | |||||||
U.S. Treasury Securities [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | [1] | 6,835 | 2,586 | |||||||
Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | [1] | 488 | [2] | 547 | ||||||
Fair Value, Measurements, Recurring [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 7,323 | 3,133 | ||||||||
Fair Value, Measurements, Recurring [Member] | U.S. Treasury Securities [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 6,835 | 2,586 | ||||||||
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 488 | 547 | ||||||||
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | [3] | 8 | ||||||||
Derivative financial instruments, liabilities, fair value | [3] | 2 | 2 | |||||||
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member] | Fair Value Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | [3] | 5 | ||||||||
Derivative financial instruments, liabilities, fair value | [3] | 2 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 6,835 | 2,586 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. Treasury Securities [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 6,835 | 2,586 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | 0 | |||||||||
Derivative financial instruments, liabilities, fair value | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest Rate Swaps [Member] | Fair Value Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | 0 | |||||||||
Derivative financial instruments, liabilities, fair value | 0 | |||||||||
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 488 | 547 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. Treasury Securities [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 488 | 547 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | [3] | 8 | ||||||||
Derivative financial instruments, liabilities, fair value | [3] | 2 | 2 | |||||||
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest Rate Swaps [Member] | Fair Value Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | [3] | 5 | ||||||||
Derivative financial instruments, liabilities, fair value | [3] | 2 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. Treasury Securities [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Amount of total investment securities at fair value (in dollars) | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | 0 | |||||||||
Derivative financial instruments, liabilities, fair value | 0 | 0 | ||||||||
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest Rate Swaps [Member] | Fair Value Hedging [Member] | ||||||||||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||
Derivative financial instruments, assets, fair value | $ 0 | |||||||||
Derivative financial instruments, liabilities, fair value | $ 0 | |||||||||
|
Fair Value Measurements (Schedule of Financial Instruments Measured at Other Than Fair Value) (Details) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | [1] | $ 260 | $ 233 | |||||||||||||
Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | [1],[2] | 260 | [3] | 233 | ||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 260 | 233 | ||||||||||||||
Net loan receivables | 90,586 | 90,787 | ||||||||||||||
Cash and cash equivalents | [4] | 10,313 | 13,299 | |||||||||||||
Restricted cash | [4] | 1,040 | 1,846 | |||||||||||||
Other short-term investments | [4] | 1,000 | ||||||||||||||
Accrued interest receivables | [4],[5] | 990 | 951 | |||||||||||||
Time deposits | [6] | 33,969 | 34,635 | |||||||||||||
Long-term borrowings | 25,884 | 27,243 | ||||||||||||||
Accrued interest payables | [4],[5] | 302 | 292 | |||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 11,589 | 10,325 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 14,295 | 16,918 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 260 | 233 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Carrying Value [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 258 | 237 | ||||||||||||||
Net loan receivables | 87,027 | 87,471 | ||||||||||||||
Cash and cash equivalents | [4] | 10,313 | 13,299 | |||||||||||||
Restricted cash | [4] | 1,040 | 1,846 | |||||||||||||
Other short-term investments | [4] | 1,000 | ||||||||||||||
Accrued interest receivables | [4],[5] | 990 | 951 | |||||||||||||
Time deposits | [6] | 33,698 | 34,788 | |||||||||||||
Long-term borrowings | 25,163 | 27,228 | ||||||||||||||
Accrued interest payables | [4],[5] | 302 | 292 | |||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Carrying Value [Member] | Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 10,949 | 10,311 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Carrying Value [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 14,214 | 16,917 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Carrying Value [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 258 | 237 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 0 | 0 | ||||||||||||||
Net loan receivables | 0 | 0 | ||||||||||||||
Cash and cash equivalents | [4] | 10,313 | 13,299 | |||||||||||||
Restricted cash | [4] | 1,040 | 1,846 | |||||||||||||
Other short-term investments | [4] | 1,000 | ||||||||||||||
Accrued interest receivables | 0 | 0 | ||||||||||||||
Time deposits | 0 | 0 | ||||||||||||||
Long-term borrowings | 0 | 0 | ||||||||||||||
Accrued interest payables | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member] | Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 260 | 233 | ||||||||||||||
Net loan receivables | 0 | 0 | ||||||||||||||
Cash and cash equivalents | 0 | 0 | ||||||||||||||
Restricted cash | 0 | 0 | ||||||||||||||
Other short-term investments | 0 | |||||||||||||||
Accrued interest receivables | [4],[5] | 990 | 951 | |||||||||||||
Time deposits | [6] | 33,969 | 34,635 | |||||||||||||
Long-term borrowings | 25,690 | 27,026 | ||||||||||||||
Accrued interest payables | [4],[5] | 302 | 292 | |||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member] | Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 11,589 | 10,325 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 14,101 | 16,701 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 260 | 233 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | 0 | 0 | ||||||||||||||
Net loan receivables | 90,586 | 90,787 | ||||||||||||||
Cash and cash equivalents | 0 | 0 | ||||||||||||||
Restricted cash | 0 | 0 | ||||||||||||||
Other short-term investments | 0 | |||||||||||||||
Accrued interest receivables | 0 | 0 | ||||||||||||||
Time deposits | 0 | 0 | ||||||||||||||
Long-term borrowings | 194 | 217 | ||||||||||||||
Accrued interest payables | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | Consolidated Entity Excluding Variable Interest Entities (VIE) [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 0 | 0 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | Variable Interest Entity, Primary Beneficiary [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Long-term borrowings | 194 | 217 | ||||||||||||||
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member] | Residential Mortgage-Backed Securities - Agency [Member] | ||||||||||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||||||||||
Held-to-maturity investment securities | $ 0 | $ 0 | ||||||||||||||
|
Derivatives and Hedging Activities (Narrative) (Details) $ in Millions |
6 Months Ended |
---|---|
Jun. 30, 2019
USD ($)
| |
Derivative [Line Items] | |
Additional collateral | $ 20 |
Deposits [Member] | |
Derivative [Line Items] | |
Initial maximum period for cash flow hedges (in years) | 7 years |
Securitized Debt [Member] | |
Derivative [Line Items] | |
Initial maximum period for cash flow hedges (in years) | 7 years |
Derivatives and Hedging Activities (Schedule of Fair Value and Outstanding Notional Amounts of Derivative Instruments and Related Collateral Balances) (Details) € in Millions, ₨ in Millions, £ in Millions, $ in Millions, $ in Millions |
Jun. 30, 2019
USD ($)
transactions
|
Jun. 30, 2019
INR (₨)
transactions
|
Jun. 30, 2019
SGD ($)
transactions
|
Jun. 30, 2019
EUR (€)
transactions
|
Jun. 30, 2019
GBP (£)
transactions
|
Dec. 31, 2018
USD ($)
transactions
|
Dec. 31, 2018
INR (₨)
transactions
|
Dec. 31, 2018
SGD ($)
transactions
|
Dec. 31, 2018
EUR (€)
transactions
|
Dec. 31, 2018
GBP (£)
transactions
|
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Derivatives, Fair Value [Line Items] | |||||||||||||||||||
Derivative assets | [1] | $ 0 | $ 13 | ||||||||||||||||
Collateral held, derivative assets | [2] | 0 | (8) | ||||||||||||||||
Total net derivative assets | 0 | 5 | |||||||||||||||||
Derivative liabilities | [1] | 4 | 2 | ||||||||||||||||
Collateral posted, derivative liabilities | [2] | (4) | (2) | ||||||||||||||||
Total net derivative liabilities | 0 | 0 | |||||||||||||||||
Designated as Hedges [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | |||||||||||||||||||
Derivatives, Fair Value [Line Items] | |||||||||||||||||||
Derivative, notional amount | $ 1,650 | 2,450 | |||||||||||||||||
Derivative, number of outstanding derivative contracts (in transactions) | transactions | 4 | 4 | 4 | 4 | 4 | ||||||||||||||
Derivative assets | $ 0 | 8 | |||||||||||||||||
Derivative liabilities | 2 | 2 | |||||||||||||||||
Designated as Hedges [Member] | Fair Value Hedging [Member] | Interest Rate Swaps [Member] | |||||||||||||||||||
Derivatives, Fair Value [Line Items] | |||||||||||||||||||
Derivative, notional amount | $ 8,250 | 8,000 | |||||||||||||||||
Derivative, number of outstanding derivative contracts (in transactions) | transactions | 10 | 10 | 10 | 10 | 10 | ||||||||||||||
Derivative assets | $ 0 | 5 | |||||||||||||||||
Derivative liabilities | 2 | 0 | |||||||||||||||||
Not Designated as Hedges [Member] | Foreign Exchange Forward Contracts [Member] | |||||||||||||||||||
Derivatives, Fair Value [Line Items] | |||||||||||||||||||
Derivative, notional amount | $ 35 | [3] | ₨ 596 | $ 1 | € 9 | £ 12 | 33 | [3] | ₨ 464 | $ 1 | € 9 | £ 12 | |||||||
Derivative, number of outstanding derivative contracts (in transactions) | transactions | 7 | 7 | 7 | 7 | 7 | ||||||||||||||
Derivative assets | $ 0 | 0 | |||||||||||||||||
Derivative liabilities | 0 | 0 | |||||||||||||||||
Not Designated as Hedges [Member] | When-Issued Forward Contracts [Member] | |||||||||||||||||||
Derivatives, Fair Value [Line Items] | |||||||||||||||||||
Derivative, notional amount | $ 46 | $ 79 | |||||||||||||||||
Derivative, number of outstanding derivative contracts (in transactions) | transactions | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |||||||||
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Derivatives and Hedging Activities Derivatives and Hedging Activities (Schedule of Hedged Items in a Fair Value Hedging Relationship) (Details) - Long-term Borrowings [Member] - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Schedule of Hedged Items in Fair Value Hedging Relationship [Line Items] | ||
Carrying amount of hedged assets/liabilities | $ 7,800 | $ 7,893 |
Cumulative amount of fair value hedging adjustment increasing (decreasing) the carrying amount of hedged assets/liabilities | $ 49 | $ (91) |
Derivatives and Hedging Activities (Schedule of Impact of the Derivative Instruments on Income) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amounts reclassified from OCI into earnings, cash flow hedges | $ 2 | $ 1 | $ 5 | |
Interest Expense [Member] | Deposits [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Total amounts of income and expense line items presented in the statements of income in which the effects of fair value or cash flow hedges are recorded | (401) | (287) | (787) | $ (549) |
Interest Expense [Member] | Deposits [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amounts reclassified from OCI into earnings, cash flow hedges | 1 | 0 | 2 | (1) |
Gains (losses) on hedged items, fair value hedges | 0 | 0 | 0 | 0 |
Gains (losses) on interest rate swaps, fair value hedges | 0 | 0 | 0 | 0 |
Total gains (losses) on fair value hedges | 0 | 0 | 0 | 0 |
Interest Expense [Member] | Deposits [Member] | Not Designated as Hedges [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Gains (losses) on derivatives not designated as hedges | 0 | 0 | ||
Interest Expense [Member] | Long-term Borrowings [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Total amounts of income and expense line items presented in the statements of income in which the effects of fair value or cash flow hedges are recorded | (244) | (220) | (490) | (427) |
Interest Expense [Member] | Long-term Borrowings [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amounts reclassified from OCI into earnings, cash flow hedges | 1 | 1 | 3 | 1 |
Gains (losses) on hedged items, fair value hedges | (85) | 11 | (140) | 59 |
Gains (losses) on interest rate swaps, fair value hedges | 74 | (22) | 116 | (74) |
Total gains (losses) on fair value hedges | (11) | (11) | (24) | (15) |
Interest Expense [Member] | Long-term Borrowings [Member] | Not Designated as Hedges [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Gains (losses) on derivatives not designated as hedges | 0 | 0 | ||
Other Income [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Total amounts of income and expense line items presented in the statements of income in which the effects of fair value or cash flow hedges are recorded | 22 | 24 | 50 | 53 |
Other Income [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Amounts reclassified from OCI into earnings, cash flow hedges | 0 | 0 | 0 | 0 |
Gains (losses) on hedged items, fair value hedges | 0 | 0 | 0 | 0 |
Gains (losses) on interest rate swaps, fair value hedges | 0 | 0 | 0 | 0 |
Total gains (losses) on fair value hedges | $ 0 | 0 | $ 0 | 0 |
Other Income [Member] | Not Designated as Hedges [Member] | ||||
Derivative Instruments, Gain (Loss) [Line Items] | ||||
Gains (losses) on derivatives not designated as hedges | $ 2 | $ 1 |
Segment Disclosures (Narrative) (Details) |
6 Months Ended |
---|---|
Jun. 30, 2019
segment
| |
Segment Reporting [Abstract] | |
Number of reportable segments (in number of segments) | 2 |
Segment Disclosures (Schedule of Segment Disclosures) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Segment Reporting Information [Line Items] | ||||
Interest income | $ 2,977 | $ 2,636 | $ 5,914 | $ 5,205 |
Interest expense | 645 | 507 | 1,277 | 976 |
Net interest income | 2,332 | 2,129 | 4,637 | 4,229 |
Provision for loan losses | 787 | 742 | 1,596 | 1,493 |
Other income | 520 | 474 | 978 | 949 |
Other expense | 1,078 | 984 | 2,102 | 1,952 |
Income before income tax expense | 987 | 877 | 1,917 | 1,733 |
Other [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 137 | 83 | 270 | 152 |
Credit Card Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 2,396 | 2,139 | 4,758 | 4,229 |
Provision for loan losses | 692 | 637 | 1,402 | 1,282 |
Total Other Loans [Member] | Private Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 172 | 150 | 345 | 297 |
Total Other Loans [Member] | Personal Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 241 | 229 | 478 | 455 |
Provision for loan losses | 80 | 84 | 164 | 157 |
PCI Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 31 | 35 | 63 | 72 |
Provision for loan losses | 0 | 0 | 0 | 0 |
Operating Segments [Member] | Direct Banking [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 2,976 | 2,636 | 5,913 | 5,205 |
Interest expense | 645 | 507 | 1,277 | 976 |
Net interest income | 2,331 | 2,129 | 4,636 | 4,229 |
Provision for loan losses | 787 | 742 | 1,596 | 1,493 |
Other income | 436 | 398 | 808 | 792 |
Other expense | 1,039 | 948 | 2,028 | 1,880 |
Income before income tax expense | 941 | 837 | 1,820 | 1,648 |
Operating Segments [Member] | Direct Banking [Member] | Other [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 136 | 83 | 269 | 152 |
Operating Segments [Member] | Direct Banking [Member] | Credit Card Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 2,396 | 2,139 | 4,758 | 4,229 |
Operating Segments [Member] | Direct Banking [Member] | Total Other Loans [Member] | Private Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 172 | 150 | 345 | 297 |
Operating Segments [Member] | Direct Banking [Member] | Total Other Loans [Member] | Personal Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 241 | 229 | 478 | 455 |
Operating Segments [Member] | Direct Banking [Member] | PCI Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 31 | 35 | 63 | 72 |
Operating Segments [Member] | Payment Services [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 1 | 0 | 1 | 0 |
Interest expense | 0 | 0 | 0 | 0 |
Net interest income | 1 | 0 | 1 | 0 |
Provision for loan losses | 0 | 0 | 0 | 0 |
Other income | 84 | 76 | 170 | 157 |
Other expense | 39 | 36 | 74 | 72 |
Income before income tax expense | 46 | 40 | 97 | 85 |
Operating Segments [Member] | Payment Services [Member] | Other [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 1 | 0 | 1 | 0 |
Operating Segments [Member] | Payment Services [Member] | Credit Card Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 0 | 0 | 0 | 0 |
Operating Segments [Member] | Payment Services [Member] | Total Other Loans [Member] | Private Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 0 | 0 | 0 | 0 |
Operating Segments [Member] | Payment Services [Member] | Total Other Loans [Member] | Personal Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | 0 | 0 | 0 | 0 |
Operating Segments [Member] | Payment Services [Member] | PCI Student Loans [Member] | ||||
Segment Reporting Information [Line Items] | ||||
Interest income | $ 0 | $ 0 | $ 0 | $ 0 |
Revenue from Contracts with Customers (Schedule of Revenue from Contracts with Customers Disaggregated by Business Segment) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||
---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
||||||
Disaggregation of Revenue [Line Items] | |||||||||
Discount and interchange revenue, net | $ 299 | $ 263 | $ 530 | $ 517 | |||||
Protection products revenue | 49 | 50 | 98 | 103 | |||||
Transaction processing revenue | 48 | 42 | 94 | 85 | |||||
Other income subject to ASC 606 | 22 | 24 | 50 | 53 | |||||
Loan fee income | 102 | 95 | 206 | 191 | |||||
Total other income not subject to ASC 606 | 102 | 95 | 206 | 191 | |||||
Total other income by operating segment | 520 | 474 | 978 | 949 | |||||
Customer rewards included in discount and interchange revenue | 460 | 461 | 906 | 853 | |||||
Deposit product fees reported in net interest income and excluded from other income subject to ASC 606 | 1 | 1 | 2 | 1 | |||||
Accounting Standards Update 2014-09 [Member] | |||||||||
Disaggregation of Revenue [Line Items] | |||||||||
Discount and interchange revenue, net | [1] | 299 | 263 | 530 | 517 | ||||
Protection products revenue | 49 | 50 | 98 | 103 | |||||
Transaction processing revenue | 48 | 42 | 94 | 85 | |||||
Other income subject to ASC 606 | 22 | 24 | 50 | 53 | |||||
Total other income subject to ASC 606 | [2] | 418 | 379 | 772 | 758 | ||||
Operating Segments [Member] | Direct Banking [Member] | |||||||||
Disaggregation of Revenue [Line Items] | |||||||||
Loan fee income | 102 | 95 | 206 | 191 | |||||
Total other income not subject to ASC 606 | 102 | 95 | 206 | 191 | |||||
Total other income by operating segment | 436 | 398 | 808 | 792 | |||||
Operating Segments [Member] | Direct Banking [Member] | Accounting Standards Update 2014-09 [Member] | |||||||||
Disaggregation of Revenue [Line Items] | |||||||||
Discount and interchange revenue, net | [1] | 283 | 250 | 500 | 492 | ||||
Protection products revenue | 49 | 50 | 98 | 103 | |||||
Transaction processing revenue | 0 | 0 | 0 | 0 | |||||
Other income subject to ASC 606 | 2 | 3 | 4 | 6 | |||||
Total other income subject to ASC 606 | [2] | 334 | 303 | 602 | 601 | ||||
Operating Segments [Member] | Payment Services [Member] | |||||||||
Disaggregation of Revenue [Line Items] | |||||||||
Loan fee income | 0 | 0 | 0 | 0 | |||||
Total other income not subject to ASC 606 | 0 | 0 | 0 | 0 | |||||
Total other income by operating segment | 84 | 76 | 170 | 157 | |||||
Operating Segments [Member] | Payment Services [Member] | Accounting Standards Update 2014-09 [Member] | |||||||||
Disaggregation of Revenue [Line Items] | |||||||||
Discount and interchange revenue, net | [1] | 16 | 13 | 30 | 25 | ||||
Protection products revenue | 0 | 0 | 0 | 0 | |||||
Transaction processing revenue | 48 | 42 | 94 | 85 | |||||
Other income subject to ASC 606 | 20 | 21 | 46 | 47 | |||||
Total other income subject to ASC 606 | [2] | $ 84 | $ 76 | $ 170 | $ 157 | ||||
|