KBR, INC., 10-Q filed on 7/31/2025
Quarterly Report
v3.25.2
Cover Page - shares
 6 Months Ended
Jul. 04, 2025
Jul. 23, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jul. 04, 2025  
Document Transition Report false  
Entity File Number 001-33146  
Entity Registrant Name KBR, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-4536774  
Entity Address, Address Line One 601 Jefferson Street, Suite 3400  
Entity Address, City or Town Houston  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77002  
City Area Code 713  
Local Phone Number 753-2000  
Title of 12(b) Security Common Stock, $0.001 par value  
Trading Symbol KBR  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   128,841,636
Amendment Flag false  
Entity Central Index Key 0001357615  
Current Fiscal Year End Date --01-02  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
v3.25.2
Condensed Consolidated Statements of Operations - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Income Statement [Abstract]        
Revenues $ 1,952 $ 1,847 $ 3,970 $ 3,665
Cost of revenues (1,662) (1,577) (3,380) (3,147)
Gross profit 290 270 590 518
Equity in earnings of unconsolidated affiliates 51 40 93 70
Selling, general and administrative expenses (146) (129) (286) (250)
Other (1) (1) (1) 8
Operating income (loss) 194 180 396 346
Interest expense (41) (32) (82) (63)
Other non-operating income (expense) (8) (2) (5) (8)
Income from continuing operations before income taxes 145 146 309 275
Provision for income taxes (39) (40) (82) (75)
Net income from continuing operations 106 106 227 200
Net income (loss) from discontinued operations, net of tax (48) 1 (54) 1
Net income 58 107 173 201
Less: Net income attributable to noncontrolling interests included in continuing operations 1 0 2 1
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations (16) 1 (18) 1
Net income attributable to KBR $ 73 $ 106 $ 189 $ 199
Net income attributable to KBR per share        
Basic earnings per share from continuing operations (in usd per share) $ 0.81 $ 0.79 $ 1.72 $ 1.48
Basic loss per share from discontinued operations (in usd per share) (0.25) 0 (0.27) 0
Basic earnings per share attributable to KBR (in usd per share) 0.56 0.79 1.45 1.48
Diluted earnings per share from continuing operations (in usd per share) 0.81 0.79 1.71 1.47
Diluted loss per share from discontinued operations (in usd per share) (0.25) 0 (0.27) 0
Diluted earnings per share attributable to KBR (in usd per share) $ 0.56 $ 0.79 $ 1.44 $ 1.47
Basic weighted average common shares outstanding (in shares) 129 134 130 134
Diluted weighted average common shares outstanding (in shares) 129 134 131 135
Cash dividends declared per share (in usd per share) $ 0.165 $ 0.150 $ 0.330 $ 0.300
v3.25.2
Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Statement of Comprehensive Income [Abstract]        
Net income $ 58 $ 107 $ 173 $ 201
Other comprehensive income (loss):        
Foreign currency translation adjustments 59 0 88 (8)
Pension and post-retirement benefits 2 1 3 3
Changes in fair value of derivatives 3 0 (15) 11
Other comprehensive income 64 1 76 6
Income tax (expense) benefit:        
Pension and post-retirement benefits (1) 0    
Changes in fair value of derivatives (1) 0 3 (2)
Income tax (expense) benefit (2) 0 2 (2)
Other comprehensive income, net of tax 62 1 78 4
Comprehensive income 120 108 251 205
Less: Comprehensive income attributable to noncontrolling interests included in continuing operations 1 0 2 1
Less: Comprehensive income (loss) attributable to noncontrolling interests included in discontinued operations (16) 1 (18) 1
Comprehensive income attributable to KBR $ 135 $ 107 $ 267 $ 203
v3.25.2
Condensed Consolidated Balance Sheets - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Current assets:    
Cash and equivalents $ 403 $ 342
Accounts receivable, net of allowance for credit losses of $7 and $9, respectively 1,213 1,066
Contract assets 282 271
Other current assets 164 173
Current assets of discontinued operations 30 21
Total current assets 2,092 1,873
Pension Assets 115 82
Property, plant, and equipment, net of accumulated depreciation of $500 and $474 (including net PPE of $6 and $5 owned by a variable interest entity), respectively 233 237
Operating lease assets right-of-use assets 196 203
Goodwill 2,693 2,630
Intangible assets, net of accumulated amortization of $473 and $427, respectively 761 763
Equity in and advances to unconsolidated affiliates 181 192
Deferred income taxes 179 209
Other assets 343 396
Non-current assets of discontinued operations 0 78
Total Assets 6,793 6,663
Current liabilities:    
Accounts payable 813 772
Contract liabilities 334 328
Accrued salaries, wages and benefits 341 351
Current maturities of long-term debt 43 36
Other current liabilities 288 280
Current liabilities of discontinued operations 38 15
Total current liabilities 1,857 1,782
Employee compensation and benefits 135 135
Income tax payable 128 122
Deferred income taxes 88 83
Long-term debt 2,571 2,533
Operating lease liabilities 217 228
Other liabilities 308 244
Non-current liabilities of discontinued operations 0 69
Total liabilities 5,304 5,196
Commitments and Contingencies (Notes 5, 10 and 11)
KBR shareholders' equity:    
Preferred stock, $0.001 par value, 50,000,000 shares authorized, none issued 0 0
Common stock, $0.001 par value 300,000,000 shares authorized, 182,806,591 and 182,469,230 shares issued, and 128,841,538 and 132,435,609 shares outstanding, respectively 0 0
PIC 2,539 2,526
Retained earnings 1,513 1,367
Treasury stock, 53,965,053 shares and 50,033,621 shares, at cost, respectively (1,697) (1,494)
AOCL (868) (946)
Total KBR shareholders' equity 1,487 1,453
Noncontrolling interests 2 14
Total shareholders' equity 1,489 1,467
Total liabilities and shareholders’ equity $ 6,793 $ 6,663
v3.25.2
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Allowance for doubtful accounts $ 7 $ 9
Accumulated depreciation, PP&E 500 474
Net PPE of owned by a variable interest entity 233 237
Accumulated amortization, intangibles $ 473 $ 427
Preferred stock, par value (in usd per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
Preferred stock, shares issued (in shares) 0 0
Common stock, par value (in usd per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 300,000,000 300,000,000
Common stock, shares issued (in shares) 182,806,591 182,469,230
Common stock, shares outstanding (in shares) 128,841,538 132,435,609
Treasury stock, shares (in shares) 53,965,053 50,033,621
Variable Interest Entity, Primary Beneficiary    
Net PPE of owned by a variable interest entity $ 6 $ 5
v3.25.2
Condensed Consolidated Statements of Shareholders' Equity - USD ($)
$ in Millions
Total
PIC
Retained Earnings
Treasury Stock
AOCL
NCI
Beginning balance at Dec. 29, 2023 $ 1,394 $ 2,505 $ 1,072 $ (1,279) $ (915) $ 11
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 11 11        
Common stock issued upon exercise of stock options 1 1        
Dividends declared to shareholders (40)   (40)      
Repurchases of common stock (158)     (158)    
Issuance of ESPP shares 4 2   2    
Distributions to noncontrolling interests (4)         (4)
Other (2)     (2)    
Net income (loss) 201   199     2
Other comprehensive income (loss), net of tax 4       4  
Ending balance at Jun. 28, 2024 1,411 2,519 1,231 (1,437) (911) 9
Beginning balance at Mar. 29, 2024 1,419 2,514 1,145 (1,339) (912) 11
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 5 5        
Dividends declared to shareholders (20)   (20)      
Repurchases of common stock (97)     (97)    
Distributions to noncontrolling interests (4)         (4)
Other 0     (1)   1
Net income (loss) 107   106     1
Other comprehensive income (loss), net of tax 1       1  
Ending balance at Jun. 28, 2024 1,411 2,519 1,231 (1,437) (911) 9
Beginning balance at Jan. 03, 2025 1,467 2,526 1,367 (1,494) (946) 14
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 10 10        
Dividends declared to shareholders (43)   (43)      
Repurchases of common stock (204)     (204)    
Issuance of ESPP shares 6 3   3    
Investments by noncontrolling interests 8         8
Distributions to noncontrolling interests (4)         (4)
Other (2)     (2)    
Net income (loss) 173   189     (16)
Other comprehensive income (loss), net of tax 78       78  
Ending balance at Jul. 04, 2025 1,489 2,539 1,513 (1,697) (868) 2
Beginning balance at Apr. 04, 2025 1,430 2,534 1,461 (1,648) (930) 13
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 5 5        
Dividends declared to shareholders (21)   (21)      
Repurchases of common stock (48)     (48)    
Investments by noncontrolling interests 8         8
Distributions to noncontrolling interests (4)         (4)
Other (1)     (1)    
Net income (loss) 58   73     (15)
Other comprehensive income (loss), net of tax 62       62  
Ending balance at Jul. 04, 2025 $ 1,489 $ 2,539 $ 1,513 $ (1,697) $ (868) $ 2
v3.25.2
Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Statement of Stockholders' Equity [Abstract]        
Cash dividends declared per share (in usd per share) $ 0.165 $ 0.150 $ 0.330 $ 0.300
v3.25.2
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Jan. 03, 2025
Cash flows from operating activities:          
Net income $ 58 $ 107 $ 173 $ 201  
Net income (loss) from discontinued operations, net of tax 48 (1) 54 (1)  
Net income from continuing operations 106 106 227 200  
Adjustments to reconcile net income to net cash provided by operating activities:          
Depreciation and amortization 45 35 86 71  
Equity in earnings of unconsolidated affiliates (51) (40) (93) (70)  
Deferred income tax     26 18  
Gain on disposition of assets     0 (6)  
Other     4 0  
Changes in operating assets and liabilities:          
Accounts receivable, net of allowance for credit losses     (128) (15)  
Contract assets     (6) (39)  
Accounts payable     25 78  
Contract liabilities     (2) (3)  
Accrued salaries, wages and benefits     (9) 22  
Payments on operating lease obligation     (41) (32)  
Payments from unconsolidated affiliates, net     5 5  
Distributions of earnings from unconsolidated affiliates     124 99  
Pension funding     (1) (18)  
Other assets and liabilities     91 (54)  
Total cash flows provided by operating activities - continuing operations     308 256  
Cash flows from investing activities:          
Purchases of property, plant and equipment     (16) (24)  
Proceeds from sale of assets or investments     0 6  
Return of equity method investments, net     3 36  
Acquisition of business, net of cash acquired     (11) 0  
Other     0 1  
Total cash flows provided by (used in) investing activities - continuing operations     (24) 19  
Cash flows from financing activities:          
Borrowings on long-term debt     0 24  
Borrowings on Revolver     373 168  
Payments on short-term and long-term debt     (18) (81)  
Payments on Revolver     (323) (13)  
Payments to repurchase common stock     (204) (158)  
Payments on settlement of warrants     0 (33)  
Debt Issuance Costs     0 (16)  
Payments of dividends to shareholders     (41) (39)  
Other     (6) (10)  
Total cash flows used in financing activities - continuing operations     (219) (158)  
Total operating cash flows from discontinued operations     (27) 5  
Total investing cash flows from discontinued operations     (12) (11)  
Total financing cash flows from discontinued operations     8 0  
Total cash flows from discontinued operations     (31) (6)  
Effect of exchange rate changes on cash     20 (1)  
Increase in cash and cash equivalents     54 110  
Cash and cash equivalents at beginning of period     350 304 $ 304
Cash and cash equivalents at end of period 404 414 404 414 $ 350
Less: cash and cash equivalents of discontinued operations 1 15 1 15  
Cash and cash equivalents at end of period for continuing operations 403 399 403 399  
Noncash financing activities          
Dividends declared $ 21 $ 20 $ 21 $ 20  
v3.25.2
Basis of Presentation
 6 Months Ended
Jul. 04, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Basis of Presentation Basis of Presentation
The accompanying unaudited condensed consolidated financial statements were prepared using generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Regulation S-X. Accordingly, these financial statements do not include all information or notes required by generally accepted accounting principles for annual financial statements and should be read together with our 2024 Annual Report on Form 10-K.

The condensed consolidated financial statements include all normal and recurring adjustments necessary to present fairly our financial position as of July 4, 2025, the results of our operations for the three and six months ended July 4, 2025 and June 28, 2024, respectively, and our cash flows for the six months ended July 4, 2025 and June 28, 2024, respectively. Our significant accounting policies are detailed in "Note 1. Significant Accounting Policies" of our 2024 Annual Report on Form 10-K. Certain amounts in prior periods have been reclassified to conform with current period presentation. The Company's fiscal year ends on the Friday closest to December 31. The three months ended July 4, 2025 and June 28, 2024 each contained 91 days, and the six months ended July 4, 2025 and June 28, 2024 each contained 182 days.

As discussed further in Note 17 “Discontinued Operations”, HomeSafe Alliance ("HomeSafe") informed us on June 18, 2025, that U.S. Transportation Command unexpectedly terminated HomeSafe’s role in the Global Household Goods Contract. We disposed of HomeSafe in the second quarter of fiscal 2025 and determined that this disposal met the requirements to be reported as discontinued operations. As such, the results of HomeSafe are presented as discontinued operations in the accompanying Condensed Consolidated Statements of Operations, Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Cash Flows and notes for all periods presented.

We have evaluated all events and transactions occurring after the balance sheet date but before the condensed consolidated financial statements were issued and have included the appropriate disclosures.
Principles of Consolidation

The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and include the accounts of KBR, Inc. and the subsidiaries it controls, including VIEs where it is the primary beneficiary (collectively, the "Company," "KBR", "we", "us" or "our"). We account for investments over which we have significant influence, but not a controlling financial interest, using the equity method of accounting. See Note 6 "Equity Method Investments and Variable Interest Entities" to our condensed consolidated financial statements for further discussion of our equity investments and VIEs. All material intercompany balances and transactions are eliminated in consolidation.

Recent Accounting Pronouncements

New accounting pronouncements requiring implementation in future periods are discussed below.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU requires that an entity disclose specific categories in the effective tax rate reconciliation as well as provide additional information for reconciling items that meet a quantitative threshold. Further, the ASU requires certain disclosures of state versus federal income tax expense and taxes paid. The amendments in this ASU are required to be adopted for fiscal years beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued. We expect this ASU to only affect our disclosures with no impacts to our results of operations, cash flows and financial condition.
In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires disclosure of additional information about certain income statement expense categories. ASU 2024-03 will be effective for our 2027 fiscal year ending December 31, 2027. Early adoption is permitted and the amendments can be applied on a prospective or retrospective basis. We expect this ASU to only affect our disclosures with no impacts to our results of operations, cash flows and financial condition.
v3.25.2
Business Segment Information
 6 Months Ended
Jul. 04, 2025
Segment Reporting [Abstract]  
Business Segment Information Business Segment Information
We provide a wide range of professional services, and the management of our business is heavily focused on major projects or programs within each of our reportable segments. At any given time, government programs and joint ventures
represent a substantial part of our operations. To streamline and optimize our processes, we realigned our segments effective as of fiscal 2025. As part of this realignment, our Government Solutions reportable segment has been renamed Mission Technology Solutions while Sustainable Technology Solutions has retained its name. The international business contained within Government Solutions has been integrated into both Mission Technology Solutions and Sustainable Technology Solutions. All information in this Quarterly Report on Form 10-Q is presented in accordance with the realigned reportable segments and all prior period information was recast to reflect the realigned reportable segments. We are organized into two core business segments, Mission Technology Solutions and Sustainable Technology Solutions and one non-core business segment as described below:

Mission Technology Solutions. Our Mission Technology Solutions business segment provides full life-cycle support solutions to defense, intelligence, space, aviation and other programs and missions for military and other government agencies primarily in the U.S., U.K. and Australia. KBR's full-spectrum solutions span research and development, advanced prototyping, acquisition support, systems engineering, C5ISR, cyber analytics, space domain awareness, test and evaluation, data analytics and integration, systems integration and program management, global supply chain management, operations readiness and support and professional advisory services across the defense, energy security and transition and critical infrastructure sectors. Included in Mission Technology Solutions is the business of LinQuest Corporation ("LinQuest"), an engineering, data analytics and digital integration company acquired on August 30, 2024 and Infrastar Limited acquired on May 17, 2025. See Note 16 "Acquisitions" to our condensed consolidated financial statements for additional information on this acquisition. Additionally, the disposal of HomeSafe is reported as discontinued operations and the operations are excluded from Mission Technology Solutions results reflected within our tables below. See Note 17 “Discontinued Operations” for additional information regarding the HomeSafe disposal.

Sustainable Technology Solutions. Our Sustainable Technology Solutions business segment is anchored by our portfolio of over 85 innovative, proprietary, sustainability-focused process technologies that reduce emissions, increase efficiency and/or accelerate and enable energy transition across the industrial base in four primary verticals: ammonia/syngas, chemical/petrochemicals, clean refining and circular process/circular economy solutions. STS also provides highly synergistic services including advisory and consulting focused on energy security, broad-based emission solutions, high-end engineering, infrastructure, design and program management centered around decarbonization, energy efficiency, environmental impact and asset optimization, as well as our digitally-enabled operating and monitoring solutions. Through early planning and scope definition, advanced technologies and facility life-cycle optimization, our STS business segment works closely with customers to provide what we believe is the optimal approach to maximize their return on investment.

Corporate. Our non-core segment includes corporate expenses and selling, general and administrative expenses not allocated to the business segments above.
In its operation of our business, our management, including our chief operating decision maker ("CODM"), evaluates the performance of our business segments based on operating income. Our CODM, who is our chief executive officer, utilizes operating income to evaluate segment results and is a factor considered in determining capital allocation among the segments. Our CODM analyzes selected segment balance sheet information for our business segments and for the Company as a whole. Information on each of our business segments and reconciliation to Net income (loss) attributable to KBR from continuing operations within our condensed consolidated statements of operations is presented in the tables below.
Operations by Reportable Segment
Three Months Ended July 4, 2025
Dollars in millionsMTSSTSCorporateTotal
Revenues$1,412 $540 $— $1,952 
Cost of revenues(1,233)(429)— (1,662)
Gross profit179 111 — 290 
Equity in earnings of unconsolidated affiliates8 43 — 51 
Selling, general and administrative expenses(78)(30)(38)(146)
Other1 (1)(1)(1)
Operating income (loss)110 123 (39)194 
Interest expense— — (41)(41)
Other non-operating income (expense)(2)1 (7)(8)
Income (loss) from continuing operations before income taxes108 124 (87)145 
Provision for income taxes— — (39)(39)
Net income (loss) from continuing operations108 124 (126)106 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(1)2 — 1 
Net income (loss) attributable to KBR from continuing operations$109 $122 $(126)$105 
Supplemental Disclosures:
Depreciation and Amortization$30 $8 $7 $45 
Purchases of property, plant, and equipment$(11)$(1)$(2)$(14)
Three Months Ended June 28, 2024
Dollars in millionsMTSSTSCorporateTotal
Revenues$1,316 $531 $— $1,847 
Cost of revenues(1,151)(426)— (1,577)
Gross profit165 105 — 270 
Equity in earnings of unconsolidated affiliates11 29 — 40 
Selling, general and administrative expenses(63)(27)(39)(129)
Other— (1)— (1)
Operating income (loss)113 106 (39)180 
Interest expense— — (32)(32)
Other non-operating expense— — (2)(2)
Income (loss) from continuing operations before income taxes113 106 (73)146 
Provision for income taxes— — (40)(40)
Net income (loss) from continuing operations113 106 (113)106 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(2)2 — — 
Net income (loss) attributable to KBR from continuing operations$115 $104 $(113)$106 
Supplemental Disclosures:
Depreciation and Amortization$21 $7 $7 $35 
Purchases of property, plant, and equipment$— $— $(4)$(4)
Six Months Ended July 4, 2025
Dollars in millionsMTSSTSCorporateTotal
Revenues$2,880 $1,090 $— $3,970 
Cost of revenues(2,514)(866)— (3,380)
Gross profit366 224 — 590 
Equity in earnings of unconsolidated affiliates15 78 — 93 
Selling, general and administrative expenses(151)(60)(75)(286)
Other1 — (2)(1)
Operating income (loss)231 242 (77)396 
Interest expense— — (82)(82)
Other non-operating income (expense)(3)1 (3)(5)
Income (loss) from continuing operations before income taxes228 243 (162)309 
Provision for income taxes— — (82)(82)
Net income (loss) from continuing operations228 243 (244)227 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(1)3 — 2 
Net income (loss) attributable to KBR from continuing operations$229 $240 $(244)$225 
Supplemental Disclosures:
Depreciation and Amortization$59 $14 $13 $86 
Purchases of property, plant, and equipment$(11)$(1)$(4)$(16)
Total Assets as of July 4, 2025$4,604 $1,221 $968 $6,793 
Six Months Ended June 28, 2024
Dollars in millionsMTSSTSCorporateTotal
Revenues$2,641 $1,024 $— $3,665 
Cost of revenues(2,318)(829)— (3,147)
Gross profit323 195 — 518 
Equity in earnings of unconsolidated affiliates16 54 — 70 
Selling, general and administrative expenses(126)(47)(77)(250)
Other6 (1)3 8 
Operating income (loss)219 201 (74)346 
Interest expense— — (63)(63)
Other non-operating income (expense)1 1 (10)(8)
Income (loss) from continuing operations before income taxes220 202 (147)275 
Provision for income taxes— — (75)(75)
Net income (loss) from continuing operations220 202 (222)200 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(2)3 — 1 
Net income (loss) attributable to KBR from continuing operations222 199 (222)199 
Supplemental Disclosures:
Depreciation and Amortization$45 $12 $14 $71 
Purchases of property, plant, and equipment$(15)$(2)$(7)$(24)
Total Assets as of January 3, 2025$4,534 $1,182 $947 $6,663 
v3.25.2
Revenue
 6 Months Ended
Jul. 04, 2025
Revenue from Contract with Customer [Abstract]  
Revenue Revenue
Disaggregated Revenue

We disaggregate our revenue from customers by business unit, customer type, geographic destination and contract type for each of our segments as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors.

Revenue by business unit and reportable segment was as follows:
Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Mission Technology Solutions
     Science & Space$289 $291 $585 $589 
     Defense & Intel785 651 1,604 1,322 
     Readiness & Sustainment338 374 691 730 
Total Mission Technology Solutions1,412 1,316 2,880 2,641 
Sustainable Technology Solutions540 531 1,090 1,024 
Total revenue$1,952 $1,847 $3,970 $3,665 

Revenue by customer type was as follows:
Three Months Ended July 4, 2025Six Months Ended July 4, 2025

Dollars in millions
MTSSTSTotalMTSSTSTotal
U.S. Government Defense and Intelligence Clients
$856 $— $856 $1,762 $— $1,762 
U.S. Government Federal Civilian Clients
273 — 273 554 — 554 
International Government Clients
223 — 223 442 — 442 
Commercial and Infrastructure Clients
60 540 600 122 1,090 1,212 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024

Dollars in millions		MTSSTSTotalMTSSTSTotal
U.S. Government Defense and Intelligence Clients$769 $— $769 $1,527 $— $1,527 
U.S. Government Federal Civilian Clients268 — 268 548 — 548 
International Government Clients219 — 219 440 — 440 
Commercial and Infrastructure Clients60 531 591 126 1,024 1,150 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 
Revenue by geographic destination was as follows:
Three Months Ended July 4, 2025Six Months Ended July 4, 2025
Total by Countries/Regions
Dollars in millions
Mission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     United States$988 $122 $1,110 $1,964 $255 $2,219 
Europe290 66 356 670 143 813 
     Middle East39 166 205 65 318 383 
     Australia56 81 137 106 163 269 
     Africa18 51 69 36 84 120 
     Asia10 27 37 13 68 81 
     Other countries11 27 38 26 59 85 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024
Total by Countries/Regions
Dollars in millions
Mission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     United States$821 $129 $950 $1,639 $256 $1,895 
Europe387 71 458 783 143 926 
     Middle East23 165 188 53 300 353 
     Australia50 86 136 97 160 257 
     Africa16 33 49 33 66 99 
     Asia2 23 25 6 50 56 
     Other countries17 24 41 30 49 79 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 

Many of our contracts contain cost reimbursable, time-and-materials and fixed price (including unit-rate) components. We define contract type based on the component that represents the majority of the contract. Revenue by contract type was as follows:    
Three Months Ended July 4, 2025Six Months Ended July 4, 2025
Dollars in millionsMission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     Cost Reimbursable$853 $— $853 $1,744 $— $1,744 
     Time-and-Materials236 379 615 487 719 1,206 
     Fixed Price323 161 484 649 371 1,020 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024
Dollars in millionsMission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     Cost Reimbursable$839 $— $839 $1,683 $— $1,683 
     Time-and-Materials209 344 553 408 653 1,061 
     Fixed Price268 187 455 550 371 921 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 

Performance Obligations and Contract Liabilities

Changes in estimates are recognized on a cumulative catch-up basis in the current period associated with performance obligations satisfied in a prior period due to the release of a constrained milestone, modification in contract price or scope or a change in the likelihood of a contingency or claim being resolved. We recognized revenue from performance obligations
satisfied in previous periods for such matters of $26 million and $23 million for the three months ended July 4, 2025 and June 28, 2024, respectively, and $34 million and $31 million for the six months ended July 4, 2025 and June 28, 2024, respectively.

On July 4, 2025, we had $13.1 billion of transaction price allocated to remaining performance obligations. We expect to recognize approximately 36% of our remaining performance obligations as revenue within one year, 39% in years two through five and 25% thereafter. Revenue associated with our remaining performance obligations to be recognized beyond one year includes performance obligations primarily related to the Aspire Defence project, which has contract terms extending through 2041. Remaining performance obligations do not include variable consideration that was determined to be constrained as of July 4, 2025.

We recognized revenue of $214 million and $225 million for the six months ended July 4, 2025 and June 28, 2024, respectively, which was previously included in the contract liability balance at the beginning of each period.

Changes in Project-related Estimates

There are many factors that may affect the accuracy of our cost estimates and ultimately our future profitability. These include, but are not limited to, the availability and costs of resources (such as labor, materials and equipment), productivity, weather and ongoing resolution of commercial and legal matters, including any new or ongoing disputes with our business partners and others in our supply chain. We recognize revisions of revenues, costs and equity in earnings in the period in which the revisions are known. This may result in the recognition of costs before the recognition of related revenue recovery, if any. During the three and six months ended July 4, 2025 we recognized a favorable change in operating income of $50 million and $65 million, respectively, as a result of changes in estimates on an LNG project.

Accounts Receivable    
July 4,January 3,
Dollars in millions20252025
     Unbilled$602 $525 
     Trade & other611 541 
Accounts receivable$1,213 $1,066 
v3.25.2
Cash and Cash Equivalents
 6 Months Ended
Jul. 04, 2025
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents Cash and Cash Equivalents
We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents include cash balances held by our wholly-owned subsidiaries as well as cash held by joint ventures that we consolidate. Joint venture and the Aspire project cash balances are limited to specific project activities and are not available for other projects, new acquisitions and joint ventures, general cash needs or distribution to us without approval of the Board of Directors of the respective entities. The cash and cash equivalents held in consolidated joint ventures and the Aspire project are expected to be used for their respective project costs and distributions of earnings.

The components of our cash and cash equivalents balance are as follows:
 July 4, 2025
Dollars in millionsInternational (a)Domestic (b)Total
Cash and cash equivalents
$147 $119 $266 
Short-term investments (c)7 12 19 
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities (d)117 1 118 
Total$271 $132 $403 

 January 3, 2025
Dollars in millionsInternational (a)Domestic (b)Total
Cash and cash equivalents
$199 $14 $213 
Short-term investments (c)8 10 18 
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities (d)110 1 111 
Total$317 $25 $342 
(a)Includes deposits held by non-U.S. entities with operating accounts that constitute offshore cash for tax purposes.
(b)Includes U.S. dollar and foreign currency deposits held in U.S. entities with operating accounts that constitute onshore cash for tax purposes but may reside either in the U.S. or in a foreign country. Includes cash and cash equivalents held by our wholly owned captive insurance company of $11 million as of July 4, 2025 and $12 million as of January 3, 2025 which is generally not available to KBR to support its other operations.
(c)Includes time deposits, money market funds and other highly liquid short-term investments.
(d)Includes short-term investments held by Aspire Defence subcontracting entities for $90 million and $83 million as of July 4, 2025 and January 3, 2025, respectively.
v3.25.2
Unapproved Change Orders and Claims Against Clients
 6 Months Ended
Jul. 04, 2025
Contractors [Abstract]  
Unapproved Change Orders and Claims Against Clients Unapproved Change Orders and Claims Against Clients
The amounts of unapproved change orders and claims against clients included in determining the profit or loss on contracts that has been recorded to date are as follows:
Six Months Ended
July 4,June 28,
Dollars in millions20252024
Amounts included in project estimates-at-completion at beginning of fiscal year
$104 $74 
Net increase in project estimates
57 41 
Approved change orders(128)— 
Ending balance of amounts included in project estimates-at-completion$33 $115 
Amounts recognized over time based on progress $31 $91 

The balance as of July 4, 2025 relates to estimated recoveries of claims associated with certain U.S. government projects in our Mission Technology Solutions segment. During the six months ended July 4, 2025, a resolution was reached regarding an outstanding unapproved change order within our Mission Technology Solutions segment for $128 million.
v3.25.2
Equity Method Investments and Variable Interest Entities
 6 Months Ended
Jul. 04, 2025
Equity Method Investments and Joint Ventures [Abstract]  
Equity Method Investments and Variable Interest Entities Equity Method Investments and Variable Interest Entities
We conduct some of our operations through joint ventures, which operate through partnerships, corporations and undivided interests and other business forms and are principally accounted for using the equity method of accounting. Additionally, the majority of our joint ventures are VIEs. The following table presents a rollforward of our equity in and advances to unconsolidated affiliates:
Six Months EndedYear ended
July 4,January 3,
20252025
Dollars in millions
Beginning balance$192 $206 
Equity in earnings of unconsolidated affiliates 93 107 
Distributions of earnings of unconsolidated affiliates (a)
(85)(202)
Payments from unconsolidated affiliates, net(5)(9)
Return of equity method investments, net (b)
(3)(36)
Foreign currency translation adjustments5 (2)
Other (c)(16)128 
Ending balance$181 $192 

(a)In the normal course of business, our joint ventures will declare a distribution in the current quarter that is not paid until the subsequent quarter. As such, the distributions declared during the current quarter may not agree to the distributions of earnings from unconsolidated affiliates on our condensed consolidated statements of cash flows. During the year ended January 3, 2025, a joint venture within our STS segment declared a distribution of earnings of $39 million that was not received by KBR until the six months ended July 4, 2025.
(b)During the year ended January 3, 2025, we received a return of investment from JKC of approximately $36 million related to our proportionate share of a tax refund.
(c)During the six months ended July 4, 2025, Other included a reduction to the net liability position of $17 million related to a joint venture within our STS business segment. During the year ended January 3, 2025, Other included the reclassification of the net liability position of $128 million related to joint ventures within our STS business segment.

Related Party Transactions

We often provide engineering, construction management and other subcontractor services to our unconsolidated joint ventures, and our revenues include amounts related to these services. For the three and six months ended July 4, 2025, our revenues included $190 million and $363 million, respectively, and for the three and six months ended June 28, 2024, our revenues included $171 million and $344 million, respectively, related to the services we provided primarily to the Aspire Defence Limited joint venture within our MTS business segment and a joint venture within our STS business segment.

Amounts included in our condensed consolidated balance sheets related to services we provided to our unconsolidated joint ventures as of July 4, 2025 and January 3, 2025 are as follows:
 July 4,January 3,
Dollars in millions20252025
Accounts receivable, net of allowance for credit losses $92 $96 
Contract liabilities$62 $68 
v3.25.2
Retirement Benefits
 6 Months Ended
Jul. 04, 2025
Retirement Benefits [Abstract]  
Retirement Benefits Retirement Benefits
We have two frozen defined benefit pension plans in the U.S., one frozen and one active plan in the U.K. and one frozen plan in Germany. The components of net periodic pension benefit related to the frozen U.K. pension for the three and six months ended July 4, 2025 and June 28, 2024, respectively, were as follows:
 Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Components of net periodic pension benefit
Interest cost$15 $15 $30 $30 
Expected return on plan assets(28)(28)(54)(56)
Amortization of prior service cost1 — 1 — 
Recognized actuarial loss1 1 2 2 
Net periodic pension benefit$(11)$(12)$(21)$(24)
In 2024, the Trustee of the U.K. defined benefit pension plan commenced the triennial actuarial valuation of the plan which was finalized during the three months ended July 4, 2025. At this time, we do not anticipate contributing additional funding to this plan at least until the next triennial valuation occurs.
v3.25.2
Debt and Other Credit Facilities
 6 Months Ended
Jul. 04, 2025
Debt Disclosure [Abstract]  
Debt and Other Credit Facilities Debt and Other Credit Facilities
Our outstanding debt consisted of the following at the dates indicated:
Dollars in millionsJuly 4, 2025January 3, 2025
Term Loan A$1,004 $1,006 
Term Loan B988 993 
Senior Notes250 250 
Revolver395 345 
Unamortized debt issuance costs and discounts(23)(25)
Total debt2,614 2,569 
Less: current portion43 36 
Total long-term debt, net of current portion$2,571 $2,533 

Senior Credit Facility

Our existing Credit Agreement, dated as of April 25, 2018, as amended ("Credit Agreement"), consists of a $1 billion revolving credit facility (the "Revolver"), a Term Loan A ("Term Loan A") with debt tranches denominated in U.S. dollars and British pound sterling and a Term Loan B ("Term Loan B" and together with the Revolver and Term Loan A, the "Senior Credit Facility").

We had cash borrowings of $373 million on our Revolver that occurred during the six months ended July 4, 2025. We had cash repayments of $323 million on our Revolver, $13 million on our Term Loan A and $5 million on our Term Loan B that occurred during the six months ended July 4, 2025. The interest rates with respect to the Revolver, Term Loan A and Term Loan B are based on, at our option, the applicable adjusted reference rate plus an additional margin or base rate plus additional margin. Additionally, there is a commitment fee applicable to available amounts under the Revolver.
The applicable interest rate per annum of the Term B loan facility is term SOFR plus 2.00% (or base rate plus 1.00%). The details of the applicable margins and commitment fees under the Revolver, Term Loan A-1 and Term Loan A-3 are based on our consolidated net leverage ratio as follows:
Revolver, Term Loan A-1 and Term Loan A-3
Consolidated Net Leverage RatioReference Rate (a)Base RateCommitment Fee
Greater than or equal to 4.25 to 1.002.25 %1.25 %0.33 %
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.002.00 %1.00 %0.30 %
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.001.75 %0.75 %0.28 %
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.001.50 %0.50 %0.25 %
Less than 1.25 to 1.001.25 %0.25 %0.23 %
(a)The reference rate for the Revolver and the U.S. dollar tranches of Term Loan A-1 is SOFR plus 10 bps Credit Spread Adjustment and the British pound sterling tranche of Term Loan A-3 is SONIA plus 12 bps Credit Spread Adjustment.

The details of the applicable margins and commitment fees under Term Loan A-2 are based on our consolidated net leverage ratio as follows:
Term Loan A-2
Consolidated Net Leverage RatioReference Rate (a)Base RateCommitment Fee
Greater than or equal to 4.25 to 1.002.13 %1.13 %0.33 %
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.001.88 %0.88 %0.30 %
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.001.63 %0.63 %0.28 %
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.001.38 %0.38 %0.25 %
Less than 1.25 to 1.001.13 %0.13 %0.23 %
(a)The reference rate for Term Loan A-2 is SOFR.

Both Term Loan A-1 and Term Loan A-3 provide for quarterly principal payments of 0.625% of the aggregate principal amount, increasing to 1.25% starting with the quarter ending April 3, 2026. Term Loan A-2 provides for quarterly principal payments of 0.625% of the aggregate principal amount and Term Loan B provides for quarterly principal payments of $3 million. Each of Term Loan A-1, Term Loan A-3 and the Revolver matures in February 2029, Term Loan A-2 matures in August 2027 and Term Loan B matures in January 2031.

The Senior Credit Facility contains financial covenants providing for a maximum consolidated net leverage ratio and a consolidated interest coverage ratio (as such terms are defined in the Senior Credit Facility). Our consolidated net leverage ratio as of the last day of any fiscal quarter may not exceed 4.25 to 1 in 2023, reducing to 4.00 to 1 in 2024 and thereafter. Our consolidated interest coverage ratio may not be less than 3.00 to 1 as of the last day of any fiscal quarter. As of July 4, 2025, we were in compliance with our financial covenants under our Senior Credit Facility.

Senior Notes

We have $250 million aggregate principal amount of 4.750% Senior Notes due 2028 (the "Senior Notes") pursuant to an indenture among us, the guarantors party thereto and Citibank, N.A., as trustee. The Senior Notes are senior unsecured obligations and are fully and unconditionally guaranteed by each of our existing and future domestic subsidiaries that guarantee our obligations under the Senior Credit Facility and certain other indebtedness. Interest is payable semi-annually in arrears on March 30 and September 30 of each year and the principal is due on September 30, 2028.

We have the ability to redeem all or part of the Senior Notes at our option, at the redemption prices set forth in the Senior Notes, plus accrued and unpaid interest, if any, to (but not including) the redemption date. If we undergo a change of control, we may be required to make an offer to holders of the Senior Notes to repurchase all of the Senior Notes at a purchase price equal to 101% of the principal amount thereof, plus accrued and unpaid interest.
Letters of credit, surety bonds and guarantees
In connection with certain projects, we are required to provide letters of credit, surety bonds or guarantees to our customers in the ordinary course of business as credit support for contractual performance guarantees, advanced payments received from customers and future funding commitments. As of July 4, 2025, we had a $1 billion committed line of credit on the Revolver under our Senior Credit Facility and $490 million of bilateral and uncommitted lines of credit. As of July 4, 2025, with respect to our Revolver, we had $395 million of outstanding borrowings. We also have $14 million of outstanding letters of credit on our Senior Credit Facility. With respect to our $490 million of bilateral and uncommitted lines of credit, we had utilized $271 million for letters of credit as of July 4, 2025. The total remaining capacity of these committed and uncommitted lines of credit was approximately $810 million as of July 4, 2025, all of which can be used toward issuing letters of credit. Of the letters of credit outstanding under the Senior Credit Facility, none have expiry dates beyond the maturity date of the Senior Credit Facility. Of the total letters of credit outstanding under our bilateral facilities, $85 million relate to our joint venture operations where the letters of credit are posted using our capacity to support our pro-rata share of obligations under various contracts executed by joint ventures of which we are a member.
v3.25.2
Income Taxes
 6 Months Ended
Jul. 04, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The effective tax rate was approximately 27% on income from continuing operations for both the six months ended July 4, 2025 and June 28, 2024. The effective tax rate for the six months ended July 4, 2025 and June 28, 2024 as compared to the U.S. statutory rate of 21%, was primarily affected by the rate differential on our foreign earnings and the impact of state and local taxes in the U.S.

On July 4, 2025, the reconciliation bill H.R. 1 was enacted into law in the U.S. H.R.1 includes a broad range of tax reform provisions, including the elective deduction for domestic Research and Development (R&D), a reinstatement of elective 100% first-year bonus depreciation and changes to the interest limitation calculation under 163(j), among other provisions. The Company is currently evaluating the impact of the H.R. 1 tax provisions which could affect the Company's effective tax rate and deferred tax assets in 2025 and future periods. A quantitative estimate of the specific financial effects cannot be reasonably determined at this time due to the complexity of the changes in the tax reform and optionality of voluntary elections.

The valuation allowance for deferred tax assets as of July 4, 2025 and January 3, 2025 was $141 million and $142 million, respectively. The remaining valuation allowance is primarily related to foreign tax credit carryforwards and foreign and state net operating loss carryforwards that, in the judgment of management, do not meet the more likely than not realization threshold. The ultimate realization of deferred tax assets is dependent on the generation of future taxable income, in the appropriate character and source, during the periods in which those temporary differences become deductible or within the remaining carryforward period. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income and tax-planning strategies in making this assessment.
The utilization of the unreserved foreign tax credit carryforwards is based on our ability to generate income from foreign sources of approximately $162 million prior to their expiration. The utilization of other net deferred tax assets, excluding those associated with indefinite-lived intangible assets, is based on our ability to generate U.S. forecasted taxable income of approximately $971 million. Changes in our forecasted taxable income, in the appropriate character and source, as well as jurisdiction, could affect the ultimate realization of deferred tax assets.
The provision for uncertain tax positions included in other liabilities and deferred income taxes on our condensed consolidated balance sheets as of July 4, 2025 and January 3, 2025 was $86 million and $85 million, respectively.
v3.25.2
Commitments and Contingencies
 6 Months Ended
Jul. 04, 2025
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
We are a party to litigation and other proceedings that arise in the ordinary course of our business. These types of matters could result in fines, penalties, cost reimbursements or contributions, compensatory or treble damages or non-monetary sanctions or relief. We believe the probability is remote that the outcome of any individual matter, including the matters described below, will have a material adverse effect on the corporation as a whole, notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings and cash flows in any particular reporting period. Among the factors that we consider in this assessment are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if estimable), the progress of the case, existing law and precedent, the opinions or views of legal counsel and other advisers, our experience in similar cases and the experience of other companies, the facts available to us at the time of assessment and how we intend to respond to the proceeding or claim. Our assessment of these factors may change over time as individual proceedings or claims progress.
Although we cannot predict the outcome of legal or other proceedings with certainty, when it is probable that a loss will be incurred and the amount is reasonably estimable, U.S. GAAP requires us to accrue an estimate of the probable loss or range of loss. In the event a loss is probable, but the probable loss is not reasonably estimable, we are required to make a statement that such an estimate cannot be made. We follow a thorough process in which we seek to estimate the reasonably possible loss or range of loss, and only if we are unable to make such an estimate do we conclude and disclose that an estimate cannot be made. Accordingly, unless otherwise indicated below in our discussion in Note 11. "U.S. Government Matters", a reasonably possible loss or range of loss associated with any individual contingency cannot be estimated. There have been no substantive developments or changes to existing claims.
v3.25.2
U.S. Government Matters
 6 Months Ended
Jul. 04, 2025
United States Government Contract Work [Abstract]  
U.S. Government Matters U.S. Government Matters
We provide services to various U.S. governmental agencies, including the U.S. DoD, NASA, Department of State and other agencies within the Intelligence Community. The negotiation, administration and settlement of our contracts are subject to audit by the DCAA. The DCAA serves in an advisory role to the DCMA, which is responsible for the administration of the majority of our contracts. The scope of these audits includes, among other things, the validity of direct and indirect incurred costs, provisional approval of annual billing rates, approval of annual overhead rates, compliance with the FAR and CAS, compliance with certain unique contract clauses and audits of certain aspects of our internal control systems. Based on the information received to date, we do not believe any completed or ongoing government audits will have a material adverse impact on our results of operations, financial position or cash flows. The U.S. government also retains the right to pursue various remedies under any of these contracts which could result in challenges to expenditures, suspension of payments, fines and suspensions or debarment from future business with the U.S. government.

We accrued for probable and reasonably estimable unallowable costs associated with open government matters related to our MTS business in the amounts of $42 million as of July 4, 2025 and $41 million as of January 3, 2025, which are recorded in other liabilities on our condensed consolidated balance sheets.

Legacy U.S. Government Matters

Between 2002 and 2011, we provided significant support to the U.S. Army and other U.S. government agencies in support of the war in Iraq under the LogCAP III contract. We have been closing out the LogCAP III contract since 2011, and we expect the contract closeout process to continue for at least another year. As a result of our work under LogCAP III, there are claims and disputes pending between us and the U.S. government that need to be resolved in order to close the contract. The contract closeout process includes administratively closing the individual task orders issued under the contract. We continue to work with the U.S. government to resolve the issues to close the remaining task orders, which includes ongoing litigation of third-party vendor disputes. We also have matters related to ongoing litigation or investigations involving U.S. government contracts. We anticipate billing vendor resolution and vendor litigation costs as we resolve the open matters in the future.
First Kuwaiti Trading Company arbitration. In April 2008, FKTC, one of our LogCAP III subcontractors providing housing containers, filed for arbitration with the American Arbitration Association for several claims under various LogCAP III subcontracts. After a series of arbitration proceedings and related litigation between KBR and the U.S. government, the panel heard the final claims and we received an award on July 27, 2022. FKTC filed a motion for correction of the award asking the tribunal to change its findings. The tribunal denied FKTC's motion in an order issued on October 20, 2022. On January 5, 2023, FKTC filed a motion to vacate the arbitral award in the Eastern District of Virginia Federal District Court. KBR filed its response on February 2, 2023. On March 22, 2023, both parties presented oral arguments. On May 12, 2023, the District Court issued its order denying FKTC’s motion to vacate the arbitration award and confirming the award. On June 12, 2023, the parties submitted their briefs in support of their calculations of the final award amount. KBR sought to confirm the net award of $16 million in KBR’s favor plus post-judgment interest. FKTC sought to offset amounts awarded to KBR with amounts FKTC claimed it was owed based on unpaid principal and post award interest on the awards issued in its favor in the prior arbitration proceedings, totaling $70 million. KBR disagreed with FKTC’s interest claim and calculation. On September 22, 2023, the Court issued a decision finding the net amount due in favor of KBR from FKTC is $8 million. FKTC has appealed this ruling. In June 2025, the appellate court affirmed the judgment in KBR’s favor and then, in July 2025, denied FKTC’s petition for a rehearing en banc. In addition, in March 2022, FKTC filed a civil action in Kuwait civil court against KBR seeking $100 million in damages. This action is duplicative of the claims decided in arbitration. In September 2022, we filed a motion to dismiss this action for lack of jurisdiction due to the arbitration agreement between KBR and FKTC. On December 7, 2023, the Kuwait Court of Cassation issued a ruling ordering KBR to pay an immaterial provisional damage award and requiring FKTC to refile its case in the Court of First Instance for adjudication. FKTC refiled its case and, in November 2024, served KBR. We are preparing a response. Based on our assessment of existing law and precedent, the opinions or views of legal counsel and the facts available to us, no amounts were accrued as of July 4, 2025.
v3.25.2
Accumulated Other Comprehensive Loss
 6 Months Ended
Jul. 04, 2025
Stockholders' Equity Note [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
Changes in AOCL, net of tax, by component
Dollars in millionsAccumulated foreign currency translation adjustmentsAccumulated pension liability adjustmentsChanges in fair value of derivativesTotal
Balance at January 3, 2025$(320)$(655)$29 $(946)
Other comprehensive income (loss) adjustments before reclassifications88 — (3)85 
Amounts reclassified from AOCL— 2 (9)(7)
Net other comprehensive income (loss)
88 2 (12)78 
Balance at July 4, 2025$(232)$(653)$17 $(868)

Dollars in millionsAccumulated foreign currency translation adjustmentsAccumulated pension liability adjustmentsChanges in fair value of derivativesTotal
Balance at December 29, 2023$(300)$(644)$29 $(915)
Other comprehensive income (loss) adjustments before reclassifications(8)1 21 14 
Amounts reclassified from AOCL— 2 (12)(10)
Net other comprehensive income (loss)(8)3 9 4 
Balance at June 28, 2024$(308)$(641)$38 $(911)

Reclassifications out of AOCL, net of tax, by component
Six Months Ended
July 4,June 28,Affected line item on the Condensed Consolidated Statements of Operations
Dollars in millions20252024
Accumulated pension liability adjustments
    Amortization of prior service cost$(1)$— See (a) below
    Recognized actuarial loss(2)(2)See (a) below
Tax benefit
1 — Provision for income taxes
Net pension and post-retirement benefits
$(2)$(2)Net of tax
Changes in fair value for derivatives
Interest rate swap settlements$11 $14 Interest Expense
Tax expense
(2)(2)Provision for income taxes
Net changes in fair value of derivatives
$9 $12 Net of tax
(a)This item is included in the computation of net periodic pension cost. See Note 7 "Retirement Benefits" to our condensed consolidated financial statements for further discussion.
v3.25.2
Share Repurchases
 6 Months Ended
Jul. 04, 2025
Equity [Abstract]  
Share Repurchases Share Repurchases
Authorized Share Repurchase Program

        On February 25, 2014, the Board of Directors authorized a plan to repurchase our outstanding shares of common stock, which replaced and terminated the August 26, 2011 share repurchase program. On February 20, 2025, the Board of Directors authorized $454 million of share repurchases to be added to the prior authorizations, which increased the total amount authorized and available for repurchase under the share repurchase program to $750 million. As of July 4, 2025, $552 million remained available for repurchase under this authorization. The authorization does not obligate us to acquire any particular
number of shares of common stock and may be commenced, suspended or discontinued without prior notice. The share repurchases are intended to be funded through our current and future cash flows and the authorization does not have an expiration date.

Withheld to Cover Program

We have in place a "withhold to cover" program, which allows us to withhold common shares from employees in connection with the settlement of income tax and related benefit withholding obligations arising from the issuance of share-based equity awards under the KBR, Inc. 2006 Stock and Incentive Plan.

The table below presents information on our share repurchases activity under these programs:
Three Months EndedSix Months Ended
July 4, 2025July 4, 2025
Number of SharesAverage Price per ShareDollars in MillionsNumber of SharesAverage Price per ShareDollars in Millions
Repurchases under the authorized share repurchase program910,056 $52.72 $48 3,919,143 $50.50 $198 
Withhold to cover shares3,244 51.95 — 116,927 49.05 6 
Total913,300 $52.72 $48 4,036,070 $50.46 $204 
Three Months EndedSix Months Ended
June 28, 2024June 28, 2024
Number of SharesAverage Price per ShareDollars in MillionsNumber of SharesAverage Price per ShareDollars in Millions
Repurchases under the authorized share repurchase program1,511,558 $63.84 $96 2,338,355 $62.64 $146 
Withhold to cover shares5,469 63.96 1 195,411 59.28 12 
Total1,517,027 $63.84 $97 2,533,766 $62.38 $158 
v3.25.2
Income per Share
 6 Months Ended
Jul. 04, 2025
Earnings Per Share [Abstract]  
Income per Share Income per Share    
Basic income per share is based upon the weighted average number of common shares outstanding during the period. Diluted income per share includes additional common shares that would have been outstanding if potential common shares with a dilutive effect had been issued using the treasury stock method for all other instruments.

A summary of the basic and diluted net income per share calculations is as follows:
 Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Shares in millions2025202420252024
Net income attributable to KBR from continuing operations:
Net income from continuing operations$106 $106 $227 $200 
Less: Net income attributable to noncontrolling interests included in continuing operations1 — 2 1 
Net income attributable to KBR from continuing operations105 106 225 199 
Less: Earnings allocable to participating securities1 — 1 1 
Basic net income attributable to KBR from continuing operations104 106 224 198 
Diluted net income attributable to KBR from continuing operations$104 $106 $224 $198 
Net income (loss) attributable to KBR from discontinued operations:
Net income (loss) from discontinued operations, net of tax$(48)$1 $(54)$1 
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations(16)1 (18)1 
Net loss attributable to KBR from discontinued operations(32)— (36)— 
Basic net loss attributable to KBR from discontinued operations(32)— (36)— 
Diluted net loss attributable to KBR from discontinued operations$(32)$— $(36)$— 
Weighted average common shares outstanding:
Basic weighted average common shares outstanding129 134 130 134 
Stock options and restricted shares— — 1 1 
Diluted weighted average common shares outstanding129 134 131 135 
Net income attributable to KBR per share:
Basic earnings (loss) per share
Continuing operations$0.81 $0.79 $1.72 $1.48 
Discontinued operations$(0.25)$— $(0.27)$— 
Total basic earnings per share attributable to KBR$0.56 $0.79 $1.45 $1.48 
Diluted earnings (loss) per share
Continuing operations$0.81 $0.79 $1.71 $1.47 
Discontinued operations$(0.25)$— $(0.27)$— 
Total diluted earnings per share attributable to KBR$0.56 $0.79 $1.44 $1.47 
The diluted net income attributable to KBR per share calculation excluded the following weighted-average potential common shares related to our stock options and restricted stock awards because their inclusion would have been anti-dilutive: 0.3 million for the three and six months ended July 4, 2025 and 0.3 million for the three and six months ended June 28, 2024.
v3.25.2
Fair Value of Financial Instruments and Risk Management
 6 Months Ended
Jul. 04, 2025
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments and Risk Management Fair Value of Financial Instruments and Risk Management
Fair value measurements. The fair value of an asset or liability is the price that would be received to sell an asset or transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We utilize a fair value hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value and defines three levels of inputs that may be used to measure fair value. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs derived from observable market data. Level 3 inputs are unobservable inputs that are supported by little or no market activity and are significant to the fair value of the assets or liabilities.

The carrying amount of cash and cash equivalents, accounts receivable and accounts payable, as reflected in the condensed consolidated balance sheets, approximates fair value due to the short-term maturities of these financial instruments. The carrying values and estimated fair values of our financial instruments that are not required to be recorded at fair value in our condensed consolidated balance sheets are provided in the following table.

July 4, 2025January 3, 2025
Dollars in millionsCarrying ValueFair ValueCarrying ValueFair Value
Liabilities (including current maturities):
Term Loan A
Level 2$1,004 $1,004 $1,006 $1,006 
Term Loan B
Level 2988 992 993 996 
Senior Notes
Level 2250 241 250 240 
RevolverLevel 2395 395 345 345 

The carrying value of the debt instruments listed above exclude debt issuance costs for the respective instrument. See Note 8 "Debt and Other Credit Facilities" for the debt issuance costs of our debt instruments and further discussion of our term loans, Senior Notes and Revolver.

The following disclosures for foreign currency risk and interest rate risk includes the fair value hierarchy levels for our assets and liabilities that are measured at fair value on a recurring basis.

Foreign currency risk. We conduct business globally in numerous currencies and are therefore exposed to foreign currency fluctuations. We may use derivative instruments to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. We do not use derivative instruments for speculative trading purposes. We generally utilize foreign currency exchange forwards and option contracts to hedge exposures associated with forecasted future cash flows and to hedge exposures present on our balance sheet.

As of July 4, 2025, the gross notional value of our foreign currency exchange forwards and option contracts used to hedge balance sheet exposures was $206 million, all of which had durations of 25 days or less. The fair value of our balance sheet hedges are included in other current assets and other current liabilities on our condensed consolidated balance sheets at July 4, 2025, and January 3, 2025. The fair values of these derivatives are considered Level 2 under ASC 820, Fair Value Measurement, as they are based on quoted prices directly observable in active markets.

The following table summarizes the recognized changes in fair value of our balance sheet hedges and remeasurement of balance sheet positions. These amounts are recognized in our condensed consolidated statements of operations for the periods presented. The net of our changes in fair value of hedges and the remeasurement of our assets and liabilities is included in other non-operating income (expense) on our condensed consolidated statements of operations.
Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Balance Sheet Hedges - Fair Value$— $— $(2)$(1)
Balance Sheet Position - Remeasurement(2)(2)(3)(1)
Net loss
$(2)$(2)$(5)$(2)
Interest rate risk. We use interest rate swaps to reduce interest rate risk and to manage net interest expense by converting a portion of our variable rate debt under our Senior Credit Facility into fixed-rate debt. During the three months ended April 4, 2025, we entered into additional interest rate swap agreements to term SOFR. The effective date of the April 2025 Forward Interest Rate Swaps is August 14, 2027.

Our portfolio of interest rate swaps consists of the following:

Dollars in millionsNotional Amount at July 4, 2025*Pay Fixed Rate (Weighted Average)Receive Variable RateSettlement and Termination
March 2020 Interest Rate Swaps$400 0.89 %Term SOFRMonthly through January 2027
September 2022 Interest Rate Swaps$350 3.43 %Term SOFRMonthly through January 2027
March 2023 Interest Rate Swaps$205 3.61 %Term SOFRMonthly through January 2027
March 2023 Amortizing Interest Rate Swaps£107 3.81 %Term SONIAMonthly through November 2026
September 2024 Interest Rate Swaps$200 3.27 %Term SOFRMonthly through August 2027
April 2025 Interest Rate Swaps$270 3.39 %Term SOFRMonthly through August 2027
April 2025 Forward Interest Rate Swaps$150 3.38 %Term SOFRMonthly from August 2027 through December 2030
*Includes the April 2025 Forward Interest Rate Swaps that become effective August 14, 2027.

Our interest rate swaps are reported at fair value using Level 2 inputs. The fair value of the interest rate swaps at July 4, 2025 was a $22 million net asset, of which $17 million is included in other current assets, $6 million is included in other assets and $1 million is included in other liabilities. The unrealized net gain on these interest rate swaps was $22 million and is included in AOCL as of July 4, 2025. The fair value of the interest rate swaps at January 3, 2025 was a $37 million net asset, of which $19 million is included in other current assets and $18 million is included in other assets. The unrealized net gains on these interest rate swaps was $37 million and is included in AOCL as of January 3, 2025.

Sales of Receivables. From time to time, we sell certain receivables to unrelated third-party financial institutions under various accounts receivable monetization programs. One such program is with MUFG Bank, Ltd. (“MUFG”) under a Master Accounts Receivable Purchase Agreement (the “RPA”), which provides the sale to MUFG of certain of our designated eligible receivables, with a significant portion of such receivables being owed by the U.S. government. During the six months ended July 4, 2025, we derecognized $1,500 million of accounts receivables from the balance sheet under these agreements, of which certain receivables totaling $1,471 million were sold under the MUFG RPA. The fair value of the sold receivables approximated their book value due to their short-term nature. The fees incurred are presented in other non-operating income (expense) on the condensed consolidated statements of operations.

Activity for third-party financial institutions consisted of the following:
Six Months Ended
Dollars in millionsJuly 4, 2025June 28, 2024
Beginning balance$106 $135 
Sale of receivables1,500 1,555 
Settlement of receivables(1,542)(1,564)
Cash collected, not yet remitted— (4)
Outstanding balances sold to financial institutions$64 $122 

Other Investments. Other investments include investments in equity securities of privately held companies without readily determinable fair values and are included in other assets on our condensed consolidated balance sheets. These investments are accounted for under the measurement alternative, provided that KBR does not have the ability to exercise significant influence or control over the investees. KBR's aggregate investment in Mura Technology ("Mura") is approximately 17%. The carrying value of our investment in Mura was $138 million and $126 million at July 4, 2025 and January 3, 2025, respectively.
v3.25.2
Acquisitions
 6 Months Ended
Jul. 04, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]  
Acquisitions Acquisitions
Infrastar Limited

On May 17, 2025, we acquired Infrastar Limited for $35 million, which consisted of $15 million of cash and contingent consideration with an estimated fair value of $20 million that is contingent upon the achievement of certain performance targets through May 2027. The contingent consideration could result in cash payments aggregating up to approximately $24 million. Within our MTS segment, we recognized $4 million of cash, $11 million of intangible assets related to customer relationships and goodwill of $22 million primarily related to future growth opportunities. As of July 4, 2025, the estimated fair values of net assets acquired were preliminary. For U.S. tax purposes, the transaction is treated as a stock deal. As a result, there is no step-up in tax basis and the goodwill recognized is not deductible for tax purposes.

LinQuest Corporation
On August 30, 2024, we acquired LinQuest for $739 million in cash net of cash acquired, subject to certain working capital, net debt and other post-closing adjustments. As of July 4, 2025, the estimated fair values of net assets acquired were preliminary, with possible updates primarily in our finalization of tax returns. We recognized goodwill within our MTS segment of $526 million primarily related to future growth opportunities, a highly skilled assembled workforce and other expected synergies from the combined operations. Intangible assets of $200 million were recognized and comprised of customer relationships and contract backlog, which will be amortized over a weighted-average period of 14 years. There were no changes to the fair value of assets acquired and liabilities assumed as reported in our 2024 Annual Report on Form 10-K. For U.S. tax purposes, the transaction is treated as a stock deal. As a result, there is no step-up in tax basis and the goodwill recognized is not deductible for tax purposes.
v3.25.2
Discontinued Operations
 6 Months Ended
Jul. 04, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations Discontinued Operations
HomeSafe, a joint venture with Tier One Relocation, informed us on June 18, 2025, that U.S. Transportation Command unexpectedly terminated HomeSafe's role in the Global Household Goods Contract. KBR owns a 72% interest in HomeSafe. The HomeSafe joint venture is a VIE that is consolidated for financial reporting purposes and was previously reported within our MTS business segment. As of July 4, 2025 substantially all of HomeSafe's operations, including run-off operations, have ceased. We disposed of HomeSafe in the second quarter of fiscal 2025 and determined that this disposal met the requirements to be reported as discontinued operations under ASC Subtopic 205-20 Discontinued Operations. We classified the disposal of HomeSafe as discontinued operations because it represents a strategic shift that significantly impacted our long-term operations plan. As such, the results of HomeSafe are presented as discontinued operations in the accompanying Condensed Consolidated Statements of Operations, Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows for all periods presented.

Financial Information of Discontinued Operations

The key components of net income (loss) attributable to KBR from discontinued operations for the three and six months ended July 4, 2025 and June 28, 2024 were as follows:

Three Months EndedSix Months Ended
July 4, 2025June 28, 2024July 4, 2025June 28, 2024
Dollars in millions
Revenues$27 $8 $64 $8 
Cost of revenues(40)(7)(79)(7)
Gross profit (loss)(13)1 (15)1 
Selling, general and administrative expenses(22)— (27)— 
Loss on disposal (a)(22)— (22)— 
Operating income (loss)(57)1 (64)1 
Income (loss) from discontinued operations before income taxes(57)1 (64)1 
Provision for income taxes9 — 10 — 
Net income (loss) from discontinued operations, net of tax(48)1 (54)1 
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations(16)1 (18)1 
Net loss attributable to KBR from discontinued operations $(32)$— $(36)$— 
(a) Includes $64 million of asset impairments related to property, plant and equipment and write-offs of $30 million in other assets, offset by elimination of $72 million in other liabilities.

The following table summarizes the major classes of assets and liabilities of discontinued operations that were included in the Company's Condensed Consolidated Balance Sheets as of July 4, 2025 and January 3, 2025:
July 4, 2025January 3, 2025
Dollars in millions
Assets
Cash and equivalents$1 $8 
Accounts receivable, net of allowance for credit losses14 5 
Contract assets3 2 
Other current assets12 6 
Total current assets of discontinued operations30 21 
Property, plant, and equipment, net of accumulated depreciation— 52 
Other assets— 26 
Total non-current assets of discontinued operations— 78 
Liabilities
Accounts payable$24 $5 
Contract liabilities— 8 
Accrued salaries, wages and benefits3 2 
Other current liabilities11 — 
Total current liabilities of discontinued operations38 15 
Other liabilities— 69 
Total non-current liabilities of discontinued operations— 69 
v3.25.2
Pay vs Performance Disclosure - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Pay vs Performance Disclosure        
Net Income (Loss) $ 73 $ 106 $ 189 $ 199
v3.25.2
Insider Trading Arrangements
 3 Months Ended
Jul. 04, 2025
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.25.2
Basis of Presentation (Policies)
 6 Months Ended
Jul. 04, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Principles of Consolidation
Principles of Consolidation
The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and include the accounts of KBR, Inc. and the subsidiaries it controls, including VIEs where it is the primary beneficiary (collectively, the "Company," "KBR", "we", "us" or "our"). We account for investments over which we have significant influence, but not a controlling financial interest, using the equity method of accounting. See Note 6 "Equity Method Investments and Variable Interest Entities" to our condensed consolidated financial statements for further discussion of our equity investments and VIEs. All material intercompany balances and transactions are eliminated in consolidation.
Recent Accounting Pronouncements Recent Accounting Pronouncements
New accounting pronouncements requiring implementation in future periods are discussed below.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU requires that an entity disclose specific categories in the effective tax rate reconciliation as well as provide additional information for reconciling items that meet a quantitative threshold. Further, the ASU requires certain disclosures of state versus federal income tax expense and taxes paid. The amendments in this ASU are required to be adopted for fiscal years beginning after December 15, 2024. Early adoption is permitted for annual financial statements that have not yet been issued. We expect this ASU to only affect our disclosures with no impacts to our results of operations, cash flows and financial condition.
In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires disclosure of additional information about certain income statement expense categories. ASU 2024-03 will be effective for our 2027 fiscal year ending December 31, 2027. Early adoption is permitted and the amendments can be applied on a prospective or retrospective basis. We expect this ASU to only affect our disclosures with no impacts to our results of operations, cash flows and financial condition.
v3.25.2
Business Segment Information (Tables)
 6 Months Ended
Jul. 04, 2025
Segment Reporting [Abstract]  
Schedule of Operations by Reportable Segment Information on each of our business segments and reconciliation to Net income (loss) attributable to KBR from continuing operations within our condensed consolidated statements of operations is presented in the tables below.
Operations by Reportable Segment
Three Months Ended July 4, 2025
Dollars in millionsMTSSTSCorporateTotal
Revenues$1,412 $540 $— $1,952 
Cost of revenues(1,233)(429)— (1,662)
Gross profit179 111 — 290 
Equity in earnings of unconsolidated affiliates8 43 — 51 
Selling, general and administrative expenses(78)(30)(38)(146)
Other1 (1)(1)(1)
Operating income (loss)110 123 (39)194 
Interest expense— — (41)(41)
Other non-operating income (expense)(2)1 (7)(8)
Income (loss) from continuing operations before income taxes108 124 (87)145 
Provision for income taxes— — (39)(39)
Net income (loss) from continuing operations108 124 (126)106 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(1)2 — 1 
Net income (loss) attributable to KBR from continuing operations$109 $122 $(126)$105 
Supplemental Disclosures:
Depreciation and Amortization$30 $8 $7 $45 
Purchases of property, plant, and equipment$(11)$(1)$(2)$(14)
Three Months Ended June 28, 2024
Dollars in millionsMTSSTSCorporateTotal
Revenues$1,316 $531 $— $1,847 
Cost of revenues(1,151)(426)— (1,577)
Gross profit165 105 — 270 
Equity in earnings of unconsolidated affiliates11 29 — 40 
Selling, general and administrative expenses(63)(27)(39)(129)
Other— (1)— (1)
Operating income (loss)113 106 (39)180 
Interest expense— — (32)(32)
Other non-operating expense— — (2)(2)
Income (loss) from continuing operations before income taxes113 106 (73)146 
Provision for income taxes— — (40)(40)
Net income (loss) from continuing operations113 106 (113)106 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(2)2 — — 
Net income (loss) attributable to KBR from continuing operations$115 $104 $(113)$106 
Supplemental Disclosures:
Depreciation and Amortization$21 $7 $7 $35 
Purchases of property, plant, and equipment$— $— $(4)$(4)
Six Months Ended July 4, 2025
Dollars in millionsMTSSTSCorporateTotal
Revenues$2,880 $1,090 $— $3,970 
Cost of revenues(2,514)(866)— (3,380)
Gross profit366 224 — 590 
Equity in earnings of unconsolidated affiliates15 78 — 93 
Selling, general and administrative expenses(151)(60)(75)(286)
Other1 — (2)(1)
Operating income (loss)231 242 (77)396 
Interest expense— — (82)(82)
Other non-operating income (expense)(3)1 (3)(5)
Income (loss) from continuing operations before income taxes228 243 (162)309 
Provision for income taxes— — (82)(82)
Net income (loss) from continuing operations228 243 (244)227 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(1)3 — 2 
Net income (loss) attributable to KBR from continuing operations$229 $240 $(244)$225 
Supplemental Disclosures:
Depreciation and Amortization$59 $14 $13 $86 
Purchases of property, plant, and equipment$(11)$(1)$(4)$(16)
Total Assets as of July 4, 2025$4,604 $1,221 $968 $6,793 
Six Months Ended June 28, 2024
Dollars in millionsMTSSTSCorporateTotal
Revenues$2,641 $1,024 $— $3,665 
Cost of revenues(2,318)(829)— (3,147)
Gross profit323 195 — 518 
Equity in earnings of unconsolidated affiliates16 54 — 70 
Selling, general and administrative expenses(126)(47)(77)(250)
Other6 (1)3 8 
Operating income (loss)219 201 (74)346 
Interest expense— — (63)(63)
Other non-operating income (expense)1 1 (10)(8)
Income (loss) from continuing operations before income taxes220 202 (147)275 
Provision for income taxes— — (75)(75)
Net income (loss) from continuing operations220 202 (222)200 
Less: Net income (loss) attributable to noncontrolling interests included in continuing operations(2)3 — 1 
Net income (loss) attributable to KBR from continuing operations222 199 (222)199 
Supplemental Disclosures:
Depreciation and Amortization$45 $12 $14 $71 
Purchases of property, plant, and equipment$(15)$(2)$(7)$(24)
Total Assets as of January 3, 2025$4,534 $1,182 $947 $6,663 
v3.25.2
Revenue (Tables)
 6 Months Ended
Jul. 04, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
Revenue by business unit and reportable segment was as follows:
Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Mission Technology Solutions
     Science & Space$289 $291 $585 $589 
     Defense & Intel785 651 1,604 1,322 
     Readiness & Sustainment338 374 691 730 
Total Mission Technology Solutions1,412 1,316 2,880 2,641 
Sustainable Technology Solutions540 531 1,090 1,024 
Total revenue$1,952 $1,847 $3,970 $3,665 

Revenue by customer type was as follows:
Three Months Ended July 4, 2025Six Months Ended July 4, 2025

Dollars in millions
MTSSTSTotalMTSSTSTotal
U.S. Government Defense and Intelligence Clients
$856 $— $856 $1,762 $— $1,762 
U.S. Government Federal Civilian Clients
273 — 273 554 — 554 
International Government Clients
223 — 223 442 — 442 
Commercial and Infrastructure Clients
60 540 600 122 1,090 1,212 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024

Dollars in millions		MTSSTSTotalMTSSTSTotal
U.S. Government Defense and Intelligence Clients$769 $— $769 $1,527 $— $1,527 
U.S. Government Federal Civilian Clients268 — 268 548 — 548 
International Government Clients219 — 219 440 — 440 
Commercial and Infrastructure Clients60 531 591 126 1,024 1,150 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 
Revenue by geographic destination was as follows:
Three Months Ended July 4, 2025Six Months Ended July 4, 2025
Total by Countries/Regions
Dollars in millions
Mission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     United States$988 $122 $1,110 $1,964 $255 $2,219 
Europe290 66 356 670 143 813 
     Middle East39 166 205 65 318 383 
     Australia56 81 137 106 163 269 
     Africa18 51 69 36 84 120 
     Asia10 27 37 13 68 81 
     Other countries11 27 38 26 59 85 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024
Total by Countries/Regions
Dollars in millions
Mission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     United States$821 $129 $950 $1,639 $256 $1,895 
Europe387 71 458 783 143 926 
     Middle East23 165 188 53 300 353 
     Australia50 86 136 97 160 257 
     Africa16 33 49 33 66 99 
     Asia2 23 25 6 50 56 
     Other countries17 24 41 30 49 79 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 
Revenue by contract type was as follows:    
Three Months Ended July 4, 2025Six Months Ended July 4, 2025
Dollars in millionsMission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     Cost Reimbursable$853 $— $853 $1,744 $— $1,744 
     Time-and-Materials236 379 615 487 719 1,206 
     Fixed Price323 161 484 649 371 1,020 
Total revenue$1,412 $540 $1,952 $2,880 $1,090 $3,970 
Three Months Ended June 28, 2024Six Months Ended June 28, 2024
Dollars in millionsMission Technology SolutionsSustainable Technology SolutionsTotalMission Technology SolutionsSustainable Technology SolutionsTotal
     Cost Reimbursable$839 $— $839 $1,683 $— $1,683 
     Time-and-Materials209 344 553 408 653 1,061 
     Fixed Price268 187 455 550 371 921 
Total revenue$1,316 $531 $1,847 $2,641 $1,024 $3,665 
Schedule of Accounts Receivable
July 4,January 3,
Dollars in millions20252025
     Unbilled$602 $525 
     Trade & other611 541 
Accounts receivable$1,213 $1,066 
v3.25.2
Cash and Cash Equivalents (Tables)
 6 Months Ended
Jul. 04, 2025
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents
The components of our cash and cash equivalents balance are as follows:
 July 4, 2025
Dollars in millionsInternational (a)Domestic (b)Total
Cash and cash equivalents
$147 $119 $266 
Short-term investments (c)7 12 19 
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities (d)117 1 118 
Total$271 $132 $403 

 January 3, 2025
Dollars in millionsInternational (a)Domestic (b)Total
Cash and cash equivalents
$199 $14 $213 
Short-term investments (c)8 10 18 
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities (d)110 1 111 
Total$317 $25 $342 
(a)Includes deposits held by non-U.S. entities with operating accounts that constitute offshore cash for tax purposes.
(b)Includes U.S. dollar and foreign currency deposits held in U.S. entities with operating accounts that constitute onshore cash for tax purposes but may reside either in the U.S. or in a foreign country. Includes cash and cash equivalents held by our wholly owned captive insurance company of $11 million as of July 4, 2025 and $12 million as of January 3, 2025 which is generally not available to KBR to support its other operations.
(c)Includes time deposits, money market funds and other highly liquid short-term investments.
(d)Includes short-term investments held by Aspire Defence subcontracting entities for $90 million and $83 million as of July 4, 2025 and January 3, 2025, respectively.
v3.25.2
Unapproved Change Orders and Claims Against Clients (Tables)
 6 Months Ended
Jul. 04, 2025
Contractors [Abstract]  
Schedule of Unapproved Change Orders and Claims
The amounts of unapproved change orders and claims against clients included in determining the profit or loss on contracts that has been recorded to date are as follows:
Six Months Ended
July 4,June 28,
Dollars in millions20252024
Amounts included in project estimates-at-completion at beginning of fiscal year
$104 $74 
Net increase in project estimates
57 41 
Approved change orders(128)— 
Ending balance of amounts included in project estimates-at-completion$33 $115 
Amounts recognized over time based on progress $31 $91 
v3.25.2
Equity Method Investments and Variable Interest Entities (Tables)
 6 Months Ended
Jul. 04, 2025
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Equity in Earnings of Unconsolidated Affiliates The following table presents a rollforward of our equity in and advances to unconsolidated affiliates:
Six Months EndedYear ended
July 4,January 3,
20252025
Dollars in millions
Beginning balance$192 $206 
Equity in earnings of unconsolidated affiliates 93 107 
Distributions of earnings of unconsolidated affiliates (a)
(85)(202)
Payments from unconsolidated affiliates, net(5)(9)
Return of equity method investments, net (b)
(3)(36)
Foreign currency translation adjustments5 (2)
Other (c)(16)128 
Ending balance$181 $192 

(a)In the normal course of business, our joint ventures will declare a distribution in the current quarter that is not paid until the subsequent quarter. As such, the distributions declared during the current quarter may not agree to the distributions of earnings from unconsolidated affiliates on our condensed consolidated statements of cash flows. During the year ended January 3, 2025, a joint venture within our STS segment declared a distribution of earnings of $39 million that was not received by KBR until the six months ended July 4, 2025.
(b)During the year ended January 3, 2025, we received a return of investment from JKC of approximately $36 million related to our proportionate share of a tax refund.
(c)During the six months ended July 4, 2025, Other included a reduction to the net liability position of $17 million related to a joint venture within our STS business segment. During the year ended January 3, 2025, Other included the reclassification of the net liability position of $128 million related to joint ventures within our STS business segment.
Schedule of Services Provided to Unconsolidated JV's
Amounts included in our condensed consolidated balance sheets related to services we provided to our unconsolidated joint ventures as of July 4, 2025 and January 3, 2025 are as follows:
 July 4,January 3,
Dollars in millions20252025
Accounts receivable, net of allowance for credit losses $92 $96 
Contract liabilities$62 $68 
v3.25.2
Retirement Benefits (Tables)
 6 Months Ended
Jul. 04, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension Benefit The components of net periodic pension benefit related to the frozen U.K. pension for the three and six months ended July 4, 2025 and June 28, 2024, respectively, were as follows:
 Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Components of net periodic pension benefit
Interest cost$15 $15 $30 $30 
Expected return on plan assets(28)(28)(54)(56)
Amortization of prior service cost1 — 1 — 
Recognized actuarial loss1 1 2 2 
Net periodic pension benefit$(11)$(12)$(21)$(24)
v3.25.2
Debt and Other Credit Facilities (Tables)
 6 Months Ended
Jul. 04, 2025
Debt Disclosure [Abstract]  
Schedule of Outstanding Debt
Our outstanding debt consisted of the following at the dates indicated:
Dollars in millionsJuly 4, 2025January 3, 2025
Term Loan A$1,004 $1,006 
Term Loan B988 993 
Senior Notes250 250 
Revolver395 345 
Unamortized debt issuance costs and discounts(23)(25)
Total debt2,614 2,569 
Less: current portion43 36 
Total long-term debt, net of current portion$2,571 $2,533 
The details of the applicable margins and commitment fees under the Revolver, Term Loan A-1 and Term Loan A-3 are based on our consolidated net leverage ratio as follows:
Revolver, Term Loan A-1 and Term Loan A-3
Consolidated Net Leverage RatioReference Rate (a)Base RateCommitment Fee
Greater than or equal to 4.25 to 1.002.25 %1.25 %0.33 %
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.002.00 %1.00 %0.30 %
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.001.75 %0.75 %0.28 %
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.001.50 %0.50 %0.25 %
Less than 1.25 to 1.001.25 %0.25 %0.23 %
(a)The reference rate for the Revolver and the U.S. dollar tranches of Term Loan A-1 is SOFR plus 10 bps Credit Spread Adjustment and the British pound sterling tranche of Term Loan A-3 is SONIA plus 12 bps Credit Spread Adjustment.

The details of the applicable margins and commitment fees under Term Loan A-2 are based on our consolidated net leverage ratio as follows:
Term Loan A-2
Consolidated Net Leverage RatioReference Rate (a)Base RateCommitment Fee
Greater than or equal to 4.25 to 1.002.13 %1.13 %0.33 %
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.001.88 %0.88 %0.30 %
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.001.63 %0.63 %0.28 %
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.001.38 %0.38 %0.25 %
Less than 1.25 to 1.001.13 %0.13 %0.23 %
(a)The reference rate for Term Loan A-2 is SOFR.
v3.25.2
Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
Jul. 04, 2025
Stockholders' Equity Note [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
Changes in AOCL, net of tax, by component
Dollars in millionsAccumulated foreign currency translation adjustmentsAccumulated pension liability adjustmentsChanges in fair value of derivativesTotal
Balance at January 3, 2025$(320)$(655)$29 $(946)
Other comprehensive income (loss) adjustments before reclassifications88 — (3)85 
Amounts reclassified from AOCL— 2 (9)(7)
Net other comprehensive income (loss)
88 2 (12)78 
Balance at July 4, 2025$(232)$(653)$17 $(868)

Dollars in millionsAccumulated foreign currency translation adjustmentsAccumulated pension liability adjustmentsChanges in fair value of derivativesTotal
Balance at December 29, 2023$(300)$(644)$29 $(915)
Other comprehensive income (loss) adjustments before reclassifications(8)1 21 14 
Amounts reclassified from AOCL— 2 (12)(10)
Net other comprehensive income (loss)(8)3 9 4 
Balance at June 28, 2024$(308)$(641)$38 $(911)
Schedule of Reclassification Out of Accumulated Other Comprehensive Income
Reclassifications out of AOCL, net of tax, by component
Six Months Ended
July 4,June 28,Affected line item on the Condensed Consolidated Statements of Operations
Dollars in millions20252024
Accumulated pension liability adjustments
    Amortization of prior service cost$(1)$— See (a) below
    Recognized actuarial loss(2)(2)See (a) below
Tax benefit
1 — Provision for income taxes
Net pension and post-retirement benefits
$(2)$(2)Net of tax
Changes in fair value for derivatives
Interest rate swap settlements$11 $14 Interest Expense
Tax expense
(2)(2)Provision for income taxes
Net changes in fair value of derivatives
$9 $12 Net of tax
(a)This item is included in the computation of net periodic pension cost. See Note 7 "Retirement Benefits" to our condensed consolidated financial statements for further discussion.
v3.25.2
Share Repurchases (Tables)
 6 Months Ended
Jul. 04, 2025
Equity [Abstract]  
Schedule of Shares Repurchased
The table below presents information on our share repurchases activity under these programs:
Three Months EndedSix Months Ended
July 4, 2025July 4, 2025
Number of SharesAverage Price per ShareDollars in MillionsNumber of SharesAverage Price per ShareDollars in Millions
Repurchases under the authorized share repurchase program910,056 $52.72 $48 3,919,143 $50.50 $198 
Withhold to cover shares3,244 51.95 — 116,927 49.05 6 
Total913,300 $52.72 $48 4,036,070 $50.46 $204 
Three Months EndedSix Months Ended
June 28, 2024June 28, 2024
Number of SharesAverage Price per ShareDollars in MillionsNumber of SharesAverage Price per ShareDollars in Millions
Repurchases under the authorized share repurchase program1,511,558 $63.84 $96 2,338,355 $62.64 $146 
Withhold to cover shares5,469 63.96 1 195,411 59.28 12 
Total1,517,027 $63.84 $97 2,533,766 $62.38 $158 
v3.25.2
Income per Share (Tables)
 6 Months Ended
Jul. 04, 2025
Earnings Per Share [Abstract]  
Schedule of Basic and Diluted Net Income Per Share
A summary of the basic and diluted net income per share calculations is as follows:
 Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Shares in millions2025202420252024
Net income attributable to KBR from continuing operations:
Net income from continuing operations$106 $106 $227 $200 
Less: Net income attributable to noncontrolling interests included in continuing operations1 — 2 1 
Net income attributable to KBR from continuing operations105 106 225 199 
Less: Earnings allocable to participating securities1 — 1 1 
Basic net income attributable to KBR from continuing operations104 106 224 198 
Diluted net income attributable to KBR from continuing operations$104 $106 $224 $198 
Net income (loss) attributable to KBR from discontinued operations:
Net income (loss) from discontinued operations, net of tax$(48)$1 $(54)$1 
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations(16)1 (18)1 
Net loss attributable to KBR from discontinued operations(32)— (36)— 
Basic net loss attributable to KBR from discontinued operations(32)— (36)— 
Diluted net loss attributable to KBR from discontinued operations$(32)$— $(36)$— 
Weighted average common shares outstanding:
Basic weighted average common shares outstanding129 134 130 134 
Stock options and restricted shares— — 1 1 
Diluted weighted average common shares outstanding129 134 131 135 
Net income attributable to KBR per share:
Basic earnings (loss) per share
Continuing operations$0.81 $0.79 $1.72 $1.48 
Discontinued operations$(0.25)$— $(0.27)$— 
Total basic earnings per share attributable to KBR$0.56 $0.79 $1.45 $1.48 
Diluted earnings (loss) per share
Continuing operations$0.81 $0.79 $1.71 $1.47 
Discontinued operations$(0.25)$— $(0.27)$— 
Total diluted earnings per share attributable to KBR$0.56 $0.79 $1.44 $1.47 
v3.25.2
Fair Value of Financial Instruments and Risk Management (Tables)
 6 Months Ended
Jul. 04, 2025
Fair Value Disclosures [Abstract]  
Schedule of Carrying Values and Estimated Fair Values of Financial Instruments The carrying values and estimated fair values of our financial instruments that are not required to be recorded at fair value in our condensed consolidated balance sheets are provided in the following table.
July 4, 2025January 3, 2025
Dollars in millionsCarrying ValueFair ValueCarrying ValueFair Value
Liabilities (including current maturities):
Term Loan A
Level 2$1,004 $1,004 $1,006 $1,006 
Term Loan B
Level 2988 992 993 996 
Senior Notes
Level 2250 241 250 240 
RevolverLevel 2395 395 345 345 
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location
The following table summarizes the recognized changes in fair value of our balance sheet hedges and remeasurement of balance sheet positions. These amounts are recognized in our condensed consolidated statements of operations for the periods presented. The net of our changes in fair value of hedges and the remeasurement of our assets and liabilities is included in other non-operating income (expense) on our condensed consolidated statements of operations.
Three Months EndedSix Months Ended
July 4,June 28,July 4,June 28,
Dollars in millions2025202420252024
Balance Sheet Hedges - Fair Value$— $— $(2)$(1)
Balance Sheet Position - Remeasurement(2)(2)(3)(1)
Net loss
$(2)$(2)$(5)$(2)
Schedule of Interest Rate Swaps
Our portfolio of interest rate swaps consists of the following:

Dollars in millionsNotional Amount at July 4, 2025*Pay Fixed Rate (Weighted Average)Receive Variable RateSettlement and Termination
March 2020 Interest Rate Swaps$400 0.89 %Term SOFRMonthly through January 2027
September 2022 Interest Rate Swaps$350 3.43 %Term SOFRMonthly through January 2027
March 2023 Interest Rate Swaps$205 3.61 %Term SOFRMonthly through January 2027
March 2023 Amortizing Interest Rate Swaps£107 3.81 %Term SONIAMonthly through November 2026
September 2024 Interest Rate Swaps$200 3.27 %Term SOFRMonthly through August 2027
April 2025 Interest Rate Swaps$270 3.39 %Term SOFRMonthly through August 2027
April 2025 Forward Interest Rate Swaps$150 3.38 %Term SOFRMonthly from August 2027 through December 2030
*Includes the April 2025 Forward Interest Rate Swaps that become effective August 14, 2027.
Schedule of Sale of Receivables Activity
Activity for third-party financial institutions consisted of the following:
Six Months Ended
Dollars in millionsJuly 4, 2025June 28, 2024
Beginning balance$106 $135 
Sale of receivables1,500 1,555 
Settlement of receivables(1,542)(1,564)
Cash collected, not yet remitted— (4)
Outstanding balances sold to financial institutions$64 $122 
v3.25.2
Discontinued Operations (Tables)
 6 Months Ended
Jul. 04, 2025
Discontinued Operations and Disposal Groups [Abstract]  
Disposal Groups, Including Discontinued Operations
The key components of net income (loss) attributable to KBR from discontinued operations for the three and six months ended July 4, 2025 and June 28, 2024 were as follows:

Three Months EndedSix Months Ended
July 4, 2025June 28, 2024July 4, 2025June 28, 2024
Dollars in millions
Revenues$27 $8 $64 $8 
Cost of revenues(40)(7)(79)(7)
Gross profit (loss)(13)1 (15)1 
Selling, general and administrative expenses(22)— (27)— 
Loss on disposal (a)(22)— (22)— 
Operating income (loss)(57)1 (64)1 
Income (loss) from discontinued operations before income taxes(57)1 (64)1 
Provision for income taxes9 — 10 — 
Net income (loss) from discontinued operations, net of tax(48)1 (54)1 
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations(16)1 (18)1 
Net loss attributable to KBR from discontinued operations $(32)$— $(36)$— 
(a) Includes $64 million of asset impairments related to property, plant and equipment and write-offs of $30 million in other assets, offset by elimination of $72 million in other liabilities.

The following table summarizes the major classes of assets and liabilities of discontinued operations that were included in the Company's Condensed Consolidated Balance Sheets as of July 4, 2025 and January 3, 2025:
July 4, 2025January 3, 2025
Dollars in millions
Assets
Cash and equivalents$1 $8 
Accounts receivable, net of allowance for credit losses14 5 
Contract assets3 2 
Other current assets12 6 
Total current assets of discontinued operations30 21 
Property, plant, and equipment, net of accumulated depreciation— 52 
Other assets— 26 
Total non-current assets of discontinued operations— 78 
Liabilities
Accounts payable$24 $5 
Contract liabilities— 8 
Accrued salaries, wages and benefits3 2 
Other current liabilities11 — 
Total current liabilities of discontinued operations38 15 
Other liabilities— 69 
Total non-current liabilities of discontinued operations— 69 
v3.25.2
Business Segment Information (Narrative) (Details)
 6 Months Ended
Jul. 04, 2025
segment
vertical
process_technology
Segment Reporting Information [Line Items]  
Core business segments, number 2
Non-core business segments, number 1
Sustainable Technology Solutions  
Segment Reporting Information [Line Items]  
Number of process technologies (over) | process_technology 85
Number of primary areas | vertical 4
v3.25.2
Business Segment Information (Schedule of Operations by Reportable Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Jan. 03, 2025
Segment Reporting Information [Line Items]          
Revenues $ 1,952 $ 1,847 $ 3,970 $ 3,665  
Cost of revenues (1,662) (1,577) (3,380) (3,147)  
Gross profit 290 270 590 518  
Equity in earnings of unconsolidated affiliates 51 40 93 70  
Selling, general and administrative expenses (146) (129) (286) (250)  
Other (1) (1) (1) 8  
Operating income (loss) 194 180 396 346  
Interest expense (41) (32) (82) (63)  
Other non-operating income (expense) (8) (2) (5) (8)  
Income from continuing operations before income taxes 145 146 309 275  
Provision for income taxes (39) (40) (82) (75)  
Net income from continuing operations 106 106 227 200  
Less: Net income attributable to noncontrolling interests included in continuing operations 1 0 2 1  
Net income (loss) attributable to KBR from continuing operations 105 106 225 199  
Depreciation and Amortization 45 35 86 71  
Purchases of property, plant, and equipment (14) (4) (16) (24)  
Total assets 6,793 6,663 6,793 6,663 $ 6,663
MTS          
Segment Reporting Information [Line Items]          
Revenues 1,412 1,316 2,880 2,641  
Cost of revenues (1,233) (1,151) (2,514) (2,318)  
Gross profit 179 165 366 323  
Equity in earnings of unconsolidated affiliates 8 11 15 16  
Selling, general and administrative expenses (78) (63) (151) (126)  
Other 1 0 1 6  
Operating income (loss) 110 113 231 219  
Interest expense 0 0 0 0  
Other non-operating income (expense) (2) 0 (3) 1  
Income from continuing operations before income taxes 108 113 228 220  
Provision for income taxes 0 0 0 0  
Net income from continuing operations 108 113 228 220  
Less: Net income attributable to noncontrolling interests included in continuing operations (1) (2) (1) (2)  
Net income (loss) attributable to KBR from continuing operations 109 115 229 222  
Depreciation and Amortization 30 21 59 45  
Purchases of property, plant, and equipment (11) 0 (11) (15)  
Total assets 4,604 4,534 4,604 4,534  
Sustainable Technology Solutions          
Segment Reporting Information [Line Items]          
Revenues 540 531 1,090 1,024  
Cost of revenues (429) (426) (866) (829)  
Gross profit 111 105 224 195  
Equity in earnings of unconsolidated affiliates 43 29 78 54  
Selling, general and administrative expenses (30) (27) (60) (47)  
Other (1) (1) 0 (1)  
Operating income (loss) 123 106 242 201  
Interest expense 0 0 0 0  
Other non-operating income (expense) 1 0 1 1  
Income from continuing operations before income taxes 124 106 243 202  
Provision for income taxes 0 0 0 0  
Net income from continuing operations 124 106 243 202  
Less: Net income attributable to noncontrolling interests included in continuing operations 2 2 3 3  
Net income (loss) attributable to KBR from continuing operations 122 104 240 199  
Depreciation and Amortization 8 7 14 12  
Purchases of property, plant, and equipment (1) 0 (1) (2)  
Total assets 1,221 1,182 1,221 1,182  
Corporate          
Segment Reporting Information [Line Items]          
Revenues 0 0 0 0  
Cost of revenues 0 0 0 0  
Gross profit 0 0 0 0  
Equity in earnings of unconsolidated affiliates 0 0 0 0  
Selling, general and administrative expenses (38) (39) (75) (77)  
Other (1) 0 (2) 3  
Operating income (loss) (39) (39) (77) (74)  
Interest expense (41) (32) (82) (63)  
Other non-operating income (expense) (7) (2) (3) (10)  
Income from continuing operations before income taxes (87) (73) (162) (147)  
Provision for income taxes (39) (40) (82) (75)  
Net income from continuing operations (126) (113) (244) (222)  
Less: Net income attributable to noncontrolling interests included in continuing operations 0 0 0 0  
Net income (loss) attributable to KBR from continuing operations (126) (113) (244) (222)  
Depreciation and Amortization 7 7 13 14  
Purchases of property, plant, and equipment (2) (4) (4) (7)  
Total assets $ 968 $ 947 $ 968 $ 947  
v3.25.2
Revenue (Disaggregation) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Disaggregation of Revenue [Line Items]        
Revenues $ 1,952 $ 1,847 $ 3,970 $ 3,665
United States        
Disaggregation of Revenue [Line Items]        
Revenues 1,110 950 2,219 1,895
Europe        
Disaggregation of Revenue [Line Items]        
Revenues 356 458 813 926
Middle East        
Disaggregation of Revenue [Line Items]        
Revenues 205 188 383 353
Australia        
Disaggregation of Revenue [Line Items]        
Revenues 137 136 269 257
Africa        
Disaggregation of Revenue [Line Items]        
Revenues 69 49 120 99
Asia        
Disaggregation of Revenue [Line Items]        
Revenues 37 25 81 56
Other countries        
Disaggregation of Revenue [Line Items]        
Revenues 38 41 85 79
U.S. Government Defense and Intelligence Clients        
Disaggregation of Revenue [Line Items]        
Revenues 856 769 1,762 1,527
U.S. Government Federal Civilian Clients        
Disaggregation of Revenue [Line Items]        
Revenues 273 268 554 548
International Government Clients        
Disaggregation of Revenue [Line Items]        
Revenues 223 219 442 440
Commercial and Infrastructure Clients        
Disaggregation of Revenue [Line Items]        
Revenues 600 591 1,212 1,150
MTS        
Disaggregation of Revenue [Line Items]        
Revenues 1,412 1,316 2,880 2,641
MTS | United States        
Disaggregation of Revenue [Line Items]        
Revenues 988 821 1,964 1,639
MTS | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 290 387 670 783
MTS | Middle East        
Disaggregation of Revenue [Line Items]        
Revenues 39 23 65 53
MTS | Australia        
Disaggregation of Revenue [Line Items]        
Revenues 56 50 106 97
MTS | Africa        
Disaggregation of Revenue [Line Items]        
Revenues 18 16 36 33
MTS | Asia        
Disaggregation of Revenue [Line Items]        
Revenues 10 2 13 6
MTS | Other countries        
Disaggregation of Revenue [Line Items]        
Revenues 11 17 26 30
MTS | U.S. Government Defense and Intelligence Clients        
Disaggregation of Revenue [Line Items]        
Revenues 856 769 1,762 1,527
MTS | U.S. Government Federal Civilian Clients        
Disaggregation of Revenue [Line Items]        
Revenues 273 268 554 548
MTS | International Government Clients        
Disaggregation of Revenue [Line Items]        
Revenues 223 219 442 440
MTS | Commercial and Infrastructure Clients        
Disaggregation of Revenue [Line Items]        
Revenues 60 60 122 126
STS        
Disaggregation of Revenue [Line Items]        
Revenues 540 531 1,090 1,024
STS | United States        
Disaggregation of Revenue [Line Items]        
Revenues 122 129 255 256
STS | Europe        
Disaggregation of Revenue [Line Items]        
Revenues 66 71 143 143
STS | Middle East        
Disaggregation of Revenue [Line Items]        
Revenues 166 165 318 300
STS | Australia        
Disaggregation of Revenue [Line Items]        
Revenues 81 86 163 160
STS | Africa        
Disaggregation of Revenue [Line Items]        
Revenues 51 33 84 66
STS | Asia        
Disaggregation of Revenue [Line Items]        
Revenues 27 23 68 50
STS | Other countries        
Disaggregation of Revenue [Line Items]        
Revenues 27 24 59 49
STS | U.S. Government Defense and Intelligence Clients        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
STS | U.S. Government Federal Civilian Clients        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
STS | International Government Clients        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
STS | Commercial and Infrastructure Clients        
Disaggregation of Revenue [Line Items]        
Revenues 540 531 1,090 1,024
Science & Space | MTS        
Disaggregation of Revenue [Line Items]        
Revenues 289 291 585 589
Defense & Intel | MTS        
Disaggregation of Revenue [Line Items]        
Revenues 785 651 1,604 1,322
Readiness & Sustainment | MTS        
Disaggregation of Revenue [Line Items]        
Revenues $ 338 $ 374 $ 691 $ 730
v3.25.2
Revenue (Revenue by Contract Type) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Disaggregation of Revenue [Line Items]        
Total revenue $ 1,952 $ 1,847 $ 3,970 $ 3,665
Cost Reimbursable        
Disaggregation of Revenue [Line Items]        
Total revenue 853 839 1,744 1,683
Time-and-Materials        
Disaggregation of Revenue [Line Items]        
Total revenue 615 553 1,206 1,061
Fixed Price        
Disaggregation of Revenue [Line Items]        
Total revenue 484 455 1,020 921
Mission Technology Solutions        
Disaggregation of Revenue [Line Items]        
Total revenue 1,412 1,316 2,880 2,641
Mission Technology Solutions | Cost Reimbursable        
Disaggregation of Revenue [Line Items]        
Total revenue 853 839 1,744 1,683
Mission Technology Solutions | Time-and-Materials        
Disaggregation of Revenue [Line Items]        
Total revenue 236 209 487 408
Mission Technology Solutions | Fixed Price        
Disaggregation of Revenue [Line Items]        
Total revenue 323 268 649 550
Sustainable Technology Solutions        
Disaggregation of Revenue [Line Items]        
Total revenue 540 531 1,090 1,024
Sustainable Technology Solutions | Cost Reimbursable        
Disaggregation of Revenue [Line Items]        
Total revenue 0 0 0 0
Sustainable Technology Solutions | Time-and-Materials        
Disaggregation of Revenue [Line Items]        
Total revenue 379 344 719 653
Sustainable Technology Solutions | Fixed Price        
Disaggregation of Revenue [Line Items]        
Total revenue $ 161 $ 187 $ 371 $ 371
v3.25.2
Revenue (Performance Obligations and Contract Liabilities) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Revenue from Contract with Customer [Abstract]        
Revenue from performance obligations satisfied in previous periods $ 26 $ 23 $ 34 $ 31
Revenue, remaining performance obligation $ 13,100   13,100  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Contract liability, revenue recognized     $ 214 $ 225
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-05        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Revenue, remaining performance obligation, expected to be satisfied, percentage 36.00%   36.00%  
Revenue, remaining performance obligation, expected timing of satisfaction (year) 1 year   1 year  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-06-27        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Revenue, remaining performance obligation, expected to be satisfied, percentage 39.00%   39.00%  
Revenue, remaining performance obligation, expected timing of satisfaction (year) 4 years   4 years  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-06-29        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Revenue, remaining performance obligation, expected to be satisfied, percentage 25.00%   25.00%  
Revenue, remaining performance obligation, expected timing of satisfaction (year)    
v3.25.2
Revenue (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Revenue from Contract with Customer [Abstract]        
Contract liability, revenue recognized     $ 214 $ 225
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Operating income (loss) $ 194 $ 180 396 $ 346
LNG Project        
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]        
Operating income (loss) $ 50   $ 65  
v3.25.2
Revenue (Accounts Receivable) (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Revenue from External Customer [Line Items]    
Accounts receivable $ 1,213 $ 1,066
Unbilled    
Revenue from External Customer [Line Items]    
Accounts receivable 602 525
Trade & other    
Revenue from External Customer [Line Items]    
Accounts receivable $ 611 $ 541
v3.25.2
Cash and Cash Equivalents (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Cash and Cash Equivalents [Line Items]    
Cash and equivalents $ 403 $ 342
Cash and cash equivalents    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 266 213
Short-term investments    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 19 18
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 118 111
Short-term investments | Aspire Defence Project    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 90 83
International    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 271 317
International | Wholly-Owned Captive Insurance Company    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 11 12
International | Cash and cash equivalents    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 147 199
International | Short-term investments    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 7 8
International | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 117 110
Domestic    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 132 25
Domestic | Cash and cash equivalents    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 119 14
Domestic | Short-term investments    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents 12 10
Domestic | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities    
Cash and Cash Equivalents [Line Items]    
Cash and equivalents $ 1 $ 1
v3.25.2
Unapproved Change Orders and Claims Against Clients (Schedule of Unapproved Change Orders and Claims) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Unapproved Change Orders [Roll Forward]    
Amounts included in project estimates-at-completion at beginning of fiscal year $ 104 $ 74
Net increase in project estimates 57 41
Approved change orders (128) 0
Ending balance of amounts included in project estimates-at-completion 33 115
Amounts recognized over time based on progress $ 31 $ 91
v3.25.2
Unapproved Change Orders and Claims Against Clients (Narrative) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Contractors [Abstract]    
Approved change orders $ 128 $ 0
v3.25.2
Equity Method Investments and Variable Interest Entities (Schedule of Equity in Earnings of Unconsolidated Affiliates) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Jan. 03, 2025
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]          
Beginning balance     $ 192    
Equity in earnings of unconsolidated affiliates $ 51 $ 40 93 $ 70  
Distributions of earnings of unconsolidated affiliates     (124) (99)  
Return of equity method investments, net     (3) (36)  
Ending balance 181   181   $ 192
Distributions of earnings from unconsolidated affiliates     124 99  
Return of investment     3 36  
Sustainable Technology Solutions          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]          
Equity in earnings of unconsolidated affiliates 43 $ 29 78 54  
Equity Method Investments          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]          
Beginning balance     192 $ 206 206
Equity in earnings of unconsolidated affiliates     93   107
Distributions of earnings of unconsolidated affiliates     (85)   (202)
Payments from unconsolidated affiliates, net     (5)   (9)
Return of equity method investments, net     (3)   (36)
Foreign currency translation adjustments     5   (2)
Other     (16)   128
Ending balance $ 181   181   192
Distributions of earnings from unconsolidated affiliates     85   202
Return of investment     3   36
Other     (16)   128
Equity Method Investments | Sustainable Technology Solutions          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]          
Distributions of earnings of unconsolidated affiliates     (39)    
Distributions of earnings from unconsolidated affiliates     39    
Equity Method Investments | Subcontractor Settlement Agreement          
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]          
Return of equity method investments, net         (36)
Other     17   128
Return of investment         36
Other     $ 17   $ 128
v3.25.2
Equity Method Investments and Variable Interest Entities (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Schedule of Equity Method Investments [Line Items]        
Revenues $ 1,952 $ 1,847 $ 3,970 $ 3,665
Corporate Joint Venture        
Schedule of Equity Method Investments [Line Items]        
Revenues $ 190 $ 171 $ 363 $ 344
v3.25.2
Equity Method Investments and Variable Interest Entities (Related Party Disclosures) (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Schedule of Equity Method Investments [Line Items]    
Accounts receivable, net of allowance for credit losses $ 1,213 $ 1,066
Contract liabilities 334 328
Corporate Joint Venture    
Schedule of Equity Method Investments [Line Items]    
Accounts receivable, net of allowance for credit losses 92 96
Contract liabilities $ 62 $ 68
v3.25.2
Retirement Benefits (Narrative) (Details) - Pension Plan
 6 Months Ended
Jul. 04, 2025
plan
U.S  
Defined Benefit Plan Disclosure [Line Items]  
Number of frozen defined benefit plans 2
U.K.  
Defined Benefit Plan Disclosure [Line Items]  
Number of frozen defined benefit plans 1
Number of active defined benefit plans 1
Germany  
Defined Benefit Plan Disclosure [Line Items]  
Number of frozen defined benefit plans 1
v3.25.2
Retirement Benefits (Schedule of Net Periodic Pension Benefit) (Details) - U.K. - Pension Plan - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Defined Benefit Plan Disclosure [Line Items]        
Interest cost $ 15 $ 15 $ 30 $ 30
Expected return on plan assets (28) (28) (54) (56)
Amortization of prior service cost 1 0 1 0
Recognized actuarial loss 1 1 2 2
Net periodic pension benefit $ (11) $ (12) $ (21) $ (24)
v3.25.2
Debt and Other Credit Facilities (Outstanding Debt Balances) (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Debt Instrument [Line Items]    
Unamortized debt issuance costs and discounts $ (23) $ (25)
Total debt 2,614 2,569
Less: current portion 43 36
Total long-term debt, net of current portion 2,571 2,533
Secured Debt | Term Loan A    
Debt Instrument [Line Items]    
Long-term debt 1,004 1,006
Secured Debt | Term Loan B    
Debt Instrument [Line Items]    
Long-term debt 988 993
Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 250 250
Revolver | Revolver    
Debt Instrument [Line Items]    
Long-term debt $ 395 $ 345
v3.25.2
Debt and Other Credit Facilities (Senior Credit Facility) (Details) - USD ($)
 6 Months Ended
Apr. 25, 2018
Jul. 04, 2025
Jun. 28, 2024
Line of Credit Facility [Line Items]      
Cash repayments on revolver   $ 323,000,000 $ 13,000,000
Term Loan A | Secured Debt      
Line of Credit Facility [Line Items]      
Repayments of secured debt   13,000,000  
Debt instrument, covenant, interest coverage ratio 3.00    
Term Loan A | Secured Debt | Maximum      
Line of Credit Facility [Line Items]      
Debt instrument, covenant, leverage ratio through 2023 4.25    
Debt instrument, covenant, leverage ratio through 2024 and thereafter 4.00    
Term Loan B | Secured Debt      
Line of Credit Facility [Line Items]      
Repayments of secured debt   $ 5,000,000  
Quarterly principal payments $ 3,000,000    
Term Loan B | Secured Debt | SOFR      
Line of Credit Facility [Line Items]      
Rate   2.00%  
Term Loan B | Secured Debt | Base Rate      
Line of Credit Facility [Line Items]      
Rate   1.00%  
Term Loan A-1 | Secured Debt | Fiscal quarter ending March 31, 2022      
Line of Credit Facility [Line Items]      
Percentage of aggregate principal 0.625%    
Term Loan A-1 | Secured Debt | Quarter ending April 3, 2026      
Line of Credit Facility [Line Items]      
Percentage of aggregate principal 1.25%    
Term Loan A-3 | Secured Debt | Fiscal quarter ending March 31, 2022      
Line of Credit Facility [Line Items]      
Percentage of aggregate principal 0.625%    
Term Loan A-3 | Secured Debt | Quarter ending April 3, 2026      
Line of Credit Facility [Line Items]      
Percentage of aggregate principal 1.25%    
Term Loan A-2 | Secured Debt | Fiscal quarter ending March 31, 2022      
Line of Credit Facility [Line Items]      
Percentage of aggregate principal 0.625%    
Revolver | Revolver      
Line of Credit Facility [Line Items]      
Revolving credit facility $ 1,000,000,000    
Repurchase of convertible notes   $ 373,000,000  
Cash repayments on revolver   $ 323,000,000  
v3.25.2
Debt and Other Credit Facilities (Schedule of Commitment Fees) (Details)
Apr. 25, 2018
Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0010
Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0010
Secured Debt | SONIA | Term Loan A-1  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0012
Secured Debt | SONIA | Term Loan A-3  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0012
Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0010
Revolver | SONIA | Revolver  
Debt Instrument [Line Items]  
Credit spread adjustment 0.0012
Greater than or equal to 4.25 to 1.00 | Term Loan A-2  
Debt Instrument [Line Items]  
Commitment Fee 0.33%
Greater than or equal to 4.25 to 1.00 | Secured Debt | Term Loan A-1  
Debt Instrument [Line Items]  
Commitment Fee 0.33%
Greater than or equal to 4.25 to 1.00 | Secured Debt | Term Loan A-3  
Debt Instrument [Line Items]  
Commitment Fee 0.33%
Greater than or equal to 4.25 to 1.00 | Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 2.25%
Greater than or equal to 4.25 to 1.00 | Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 2.25%
Greater than or equal to 4.25 to 1.00 | Secured Debt | SOFR | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 2.13%
Greater than or equal to 4.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 1.25%
Greater than or equal to 4.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 1.25%
Greater than or equal to 4.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 1.13%
Greater than or equal to 4.25 to 1.00 | Revolver | Revolver  
Debt Instrument [Line Items]  
Commitment Fee 0.33%
Greater than or equal to 4.25 to 1.00 | Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Rate 2.25%
Greater than or equal to 4.25 to 1.00 | Revolver | Base Rate | Revolver  
Debt Instrument [Line Items]  
Rate 1.25%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Term Loan A-2  
Debt Instrument [Line Items]  
Commitment Fee 0.30%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | Term Loan A-1  
Debt Instrument [Line Items]  
Commitment Fee 0.30%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | Term Loan A-3  
Debt Instrument [Line Items]  
Commitment Fee 0.30%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 2.00%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 2.00%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | SOFR | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 1.88%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 1.00%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 1.00%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 0.88%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Revolver | Revolver  
Debt Instrument [Line Items]  
Commitment Fee 0.30%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Rate 2.00%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Revolver | Base Rate | Revolver  
Debt Instrument [Line Items]  
Rate 1.00%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Term Loan A-2  
Debt Instrument [Line Items]  
Commitment Fee 0.28%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | Term Loan A-1  
Debt Instrument [Line Items]  
Commitment Fee 0.28%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | Term Loan A-3  
Debt Instrument [Line Items]  
Commitment Fee 0.28%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 1.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 1.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | SOFR | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 1.63%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 0.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 0.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 0.63%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Revolver | Revolver  
Debt Instrument [Line Items]  
Commitment Fee 0.28%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Rate 1.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Revolver | Base Rate | Revolver  
Debt Instrument [Line Items]  
Rate 0.75%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Term Loan A-2  
Debt Instrument [Line Items]  
Commitment Fee 0.25%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | Term Loan A-1  
Debt Instrument [Line Items]  
Commitment Fee 0.25%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | Term Loan A-3  
Debt Instrument [Line Items]  
Commitment Fee 0.25%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 1.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 1.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 1.38%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 0.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 0.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 0.38%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Revolver | Revolver  
Debt Instrument [Line Items]  
Commitment Fee 0.25%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Rate 1.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Revolver | Base Rate | Revolver  
Debt Instrument [Line Items]  
Rate 0.50%
Less than 1.25 to 1.00 | Term Loan A-2  
Debt Instrument [Line Items]  
Commitment Fee 0.23%
Less than 1.25 to 1.00 | Secured Debt | Term Loan A-1  
Debt Instrument [Line Items]  
Commitment Fee 0.23%
Less than 1.25 to 1.00 | Secured Debt | Term Loan A-3  
Debt Instrument [Line Items]  
Commitment Fee 0.23%
Less than 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 1.25%
Less than 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 1.25%
Less than 1.25 to 1.00 | Secured Debt | SOFR | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 1.13%
Less than 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-1  
Debt Instrument [Line Items]  
Rate 0.25%
Less than 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-3  
Debt Instrument [Line Items]  
Rate 0.25%
Less than 1.25 to 1.00 | Secured Debt | Base Rate | Term Loan A-2  
Debt Instrument [Line Items]  
Rate 0.13%
Less than 1.25 to 1.00 | Revolver | Revolver  
Debt Instrument [Line Items]  
Commitment Fee 0.23%
Less than 1.25 to 1.00 | Revolver | SOFR | Revolver  
Debt Instrument [Line Items]  
Rate 1.25%
Less than 1.25 to 1.00 | Revolver | Base Rate | Revolver  
Debt Instrument [Line Items]  
Rate 0.25%
v3.25.2
Debt and Other Credit Facilities (Senior Notes) (Details) - Notes Due 2028 - Senior Notes
 6 Months Ended
Jul. 04, 2025
USD ($)
Debt Instrument [Line Items]  
Aggregate principal amount $ 250,000,000
Interest rate, stated percentage 4.75%
Change of control  
Debt Instrument [Line Items]  
Redemption price, percentage 101.00%
v3.25.2
Debt and Other Credit Facilities (Letters of Credit, Surety Bonds and Guarantees) (Details) - USD ($)
Jul. 04, 2025
Apr. 25, 2018
Letters of Credit Surety Bonds and Bank Guarantees    
Debt Instrument [Line Items]    
Letters of credit outstanding relate to joint venture operations $ 85,000,000  
Revolver | Revolver    
Debt Instrument [Line Items]    
Revolving credit facility   $ 1,000,000,000
Long-term line of credit 395,000,000  
Letters of credit outstanding 14,000,000  
Remaining borrowing capacity 810,000,000  
Revolver | Committed Line of Credit | Revolver    
Debt Instrument [Line Items]    
Revolving credit facility 1,000,000,000  
Revolver | Uncommitted Line of Credit | Revolver    
Debt Instrument [Line Items]    
Revolving credit facility 490,000,000  
Letter of Credit | Uncommitted Line of Credit | Revolver    
Debt Instrument [Line Items]    
Letters of credit outstanding $ 271,000,000  
v3.25.2
Income Taxes (Details) - USD ($)
$ in Millions
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jan. 03, 2025
Income Tax Disclosure [Abstract]      
Effective tax rate 27.00% 27.00%  
Deferred tax assets, valuation allowance $ 141   $ 142
Income from foreign sources 162    
Income from domestic sources 971    
Liabilities for uncertain tax positions $ 86   $ 85
v3.25.2
U.S. Government Matters (Details) - USD ($)
$ in Millions
 1 Months Ended
Sep. 22, 2023
Jun. 12, 2023
Mar. 31, 2022
Jul. 04, 2025
Jan. 03, 2025
Reserve For Potentially Disallowable Costs Incurred Under Government Contracts          
United States Government Contract Work [Line Items]          
Accrued reserve for unallowable costs       $ 42 $ 41
First Kuwaiti Trading Company Arbitration          
United States Government Contract Work [Line Items]          
Damages awarded, value   $ 16      
Claims in unpaid bonuses   $ 70 $ 100    
First Kuwaiti Trading Company Arbitration | Settled Litigation          
United States Government Contract Work [Line Items]          
Litigation settlement amount awarded from other party $ 8        
v3.25.2
Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance $ 1,430 $ 1,419 $ 1,467 $ 1,394
Other comprehensive income, net of tax 62 1 78 4
Ending balance 1,489 1,411 1,489 1,411
AOCL        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (930) (912) (946) (915)
Other comprehensive income (loss) adjustments before reclassifications     85 14
Amounts reclassified from AOCL     (7) (10)
Other comprehensive income, net of tax 62 1 78 4
Ending balance (868) (911) (868) (911)
Accumulated foreign currency translation adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     (320) (300)
Other comprehensive income (loss) adjustments before reclassifications     88 (8)
Amounts reclassified from AOCL     0 0
Other comprehensive income, net of tax     88 (8)
Ending balance (232) (308) (232) (308)
Accumulated pension liability adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     (655) (644)
Other comprehensive income (loss) adjustments before reclassifications     0 1
Amounts reclassified from AOCL     2 2
Other comprehensive income, net of tax     2 3
Ending balance (653) (641) (653) (641)
Changes in fair value of derivatives        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     29 29
Other comprehensive income (loss) adjustments before reclassifications     (3) 21
Amounts reclassified from AOCL     (9) (12)
Other comprehensive income, net of tax     (12) 9
Ending balance $ 17 $ 38 $ 17 $ 38
v3.25.2
Accumulated Other Comprehensive Loss (Reclassification out of AOCI) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest rate swap settlements $ (41) $ (32) $ (82) $ (63)
Tax expense (39) (40) (82) (75)
Net income $ 58 $ 107 173 201
Reclassification out of Accumulated Other Comprehensive Income | Accumulated pension liability adjustments        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Amortization of prior service cost     (1) 0
Recognized actuarial loss     (2) (2)
Tax expense     1 0
Net income     (2) (2)
Reclassification out of Accumulated Other Comprehensive Income | Changes in fair value for derivatives        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest rate swap settlements     11 14
Tax expense     (2) (2)
Net income     $ 9 $ 12
v3.25.2
Share Repurchases (Narrative) (Details) - USD ($)
Jul. 04, 2025
Feb. 20, 2025
Equity [Abstract]    
Additional amount authorized for repurchase program   $ 454,000,000
Stock repurchase program, authorized amount   $ 750,000,000
Remaining authorized repurchase amount $ 552,000,000  
v3.25.2
Share Repurchases (Share Repurchases Activity Under These Programs) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Equity, Class of Treasury Stock [Line Items]        
Number of shares (in shares) 913,300 1,517,027 4,036,070 2,533,766
Average price per share (in usd per share) $ 52.72 $ 63.84 $ 50.46 $ 62.38
Value of common stock repurchases $ 48 $ 97 $ 204 $ 158
Number of shares (in shares) 3,244 5,469 116,927 195,411
Average price per share (in usd per share) $ 51.95 $ 63.96 $ 49.05 $ 59.28
Value of common stock repurchases $ 0 $ 1 $ 6 $ 12
Share Repurchase Program 2014        
Equity, Class of Treasury Stock [Line Items]        
Number of shares (in shares) 910,056 1,511,558 3,919,143 2,338,355
Average price per share (in usd per share) $ 52.72 $ 63.84 $ 50.50 $ 62.64
Value of common stock repurchases $ 48 $ 96 $ 198 $ 146
v3.25.2
Income per Share (Schedule Of Basic And Diluted Weighted Average Common Shares Outstanding) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Net income attributable to KBR from continuing operations:        
Net income from continuing operations $ 106 $ 106 $ 227 $ 200
Less: Net income attributable to noncontrolling interests included in continuing operations 1 0 2 1
Net income (loss) attributable to KBR from continuing operations 105 106 225 199
Less: Earnings allocable to participating securities 1 0 1 1
Basic net income attributable to KBR from continuing operations 104 106 224 198
Diluted net income attributable to KBR from continuing operations 104 106 224 198
Net income (loss) attributable to KBR from discontinued operations:        
Net income (loss) from discontinued operations, net of tax (48) 1 (54) 1
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations (16) 1 (18) 1
Net loss attributable to KBR from discontinued operations (32) 0 (36) 0
Basic net loss attributable to KBR from discontinued operations (32) 0 (36) 0
Diluted net loss attributable to KBR from discontinued operations $ (32) $ 0 $ (36) $ 0
Weighted average common shares outstanding:        
Basic weighted average common shares outstanding (in shares) 129 134 130 134
Stock options and restricted shares (in shares) 0 0 1 1
Diluted weighted average common shares outstanding (in shares) 129 134 131 135
Basic earnings (loss) per share        
Continuing operations (in usd per share) $ 0.81 $ 0.79 $ 1.72 $ 1.48
Discontinued operations (in usd per share) (0.25) 0 (0.27) 0
Basic earnings per share attributable to KBR (in usd per share) 0.56 0.79 1.45 1.48
Diluted earnings (loss) per share        
Continuing operations (in usd per share) 0.81 0.79 1.71 1.47
Discontinued operations (in usd per share) (0.25) 0 (0.27) 0
Diluted earnings per share attributable to KBR (in usd per share) $ 0.56 $ 0.79 $ 1.44 $ 1.47
v3.25.2
Income per Share (Narrative) (Details) - shares
shares in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Stock options and restricted stock awards        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 0.3 0.3 0.3 0.3
v3.25.2
Fair Value of Financial Instruments and Risk Management (Carrying Value and Fair Value) (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Carrying Value | Secured Debt | Term Loan A    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure $ 1,004 $ 1,006
Carrying Value | Secured Debt | Term Loan B    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 988 993
Carrying Value | Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 250 250
Carrying Value | Revolver | Revolver    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 395 345
Fair Value | Secured Debt | Term Loan A    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 1,004 1,006
Fair Value | Secured Debt | Term Loan B    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 992 996
Fair Value | Senior Notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure 241 240
Fair Value | Revolver | Revolver    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt instrument, fair value disclosure $ 395 $ 345
v3.25.2
Fair Value of Financial Instruments and Risk Management (Foreign Currency Risk) (Details)
 6 Months Ended
Jul. 04, 2025
USD ($)
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]  
Maximum length of time hedged in balance sheet hedge 25 days
Balance Sheet Hedge  
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]  
Derivative, notional amount $ 206,000,000
v3.25.2
Fair Value of Financial Instruments and Risk Management (Schedule of Changes in Fair Value of Balance Sheet Hedges) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Fair Value Disclosures [Abstract]        
Balance Sheet Hedges - Fair Value $ 0 $ 0 $ (2) $ (1)
Balance Sheet Position - Remeasurement (2) (2) (3) (1)
Net loss $ (2) $ (2) $ (5) $ (2)
v3.25.2
Fair Value of Financial Instruments and Risk Management (Interest Rate Risk) (Details)
Jul. 04, 2025
USD ($)
Jul. 04, 2025
GBP (£)
March 2020 Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 400,000,000  
Fixed interest rate 0.89% 0.89%
September 2022 Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 350,000,000  
Fixed interest rate 3.43% 3.43%
March 2023 Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 205,000,000  
Fixed interest rate 3.61% 3.61%
March 2023 Amortizing Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount | £   £ 107,000,000
Fixed interest rate 3.81% 3.81%
September 2024 Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 200,000,000  
Fixed interest rate 3.27% 3.27%
April 2025 Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 270,000,000  
Fixed interest rate 3.39% 3.39%
April 2025 Forward Interest Rate Swaps    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Derivative, notional amount $ 150,000,000  
Fixed interest rate 3.38% 3.38%
v3.25.2
Fair Value of Financial Instruments and Risk Management (Interest Rate Risk) (Narrative) (Details) - Interest Rate Swap - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jul. 04, 2025
Jan. 03, 2025
Derivatives, Fair Value [Line Items]    
Fair value of interest rate swap assets (liabilities) $ 22 $ 37
Unrealized gain on derivatives 22 37
Other Current Assets    
Derivatives, Fair Value [Line Items]    
Fair value of interest rate swap assets (liabilities) 17 19
Other Assets    
Derivatives, Fair Value [Line Items]    
Fair value of interest rate swap assets (liabilities) 6 $ 18
Other Liabilities    
Derivatives, Fair Value [Line Items]    
Fair value of interest rate swap assets (liabilities) $ (1)  
v3.25.2
Fair Value of Financial Instruments and Risk Management (Sale of Receivables) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Fair Value Disclosures [Abstract]    
Sale of receivables $ 1,500 $ 1,555
Receivables sold $ 1,471  
v3.25.2
Fair Value of Financial Instruments and Risk Management (Sale of Receivables - Third-party Financial Institutions) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Transfer of Financial Assets Accounted for as Sales [Roll Forward]    
Beginning balance $ 106 $ 135
Sale of receivables 1,500 1,555
Settlement of receivables (1,542) (1,564)
Cash collected, not yet remitted 0 (4)
Outstanding balances sold to financial institutions $ 64 $ 122
v3.25.2
Fair Value of Financial Instruments and Risk Management (Other Investments) (Details) - Mura
$ in Millions
 6 Months Ended
Jul. 04, 2025
USD ($)
Jan. 03, 2025
USD ($)
Equity Securities without Readily Determinable Fair Value [Line Items]    
Ownership percentage 0.17  
Carrying value of investment $ 138 $ 126
v3.25.2
Acquisitions (Narrative) (Details) - USD ($)
$ in Millions
 6 Months Ended
May 17, 2025
Aug. 30, 2024
Jul. 04, 2025
Jun. 28, 2024
Jan. 03, 2025
Business Combination [Line Items]          
Goodwill     $ 2,693   $ 2,630
Cash consideration paid     $ 11 $ 0  
Infrastar Corporation          
Business Combination [Line Items]          
Purchase price of acquisition $ 35        
Cash consideration paid 15        
Contingent consideration 20        
Maximum contingent consideration 24        
Cash 4        
Goodwill 22        
Infrastar Corporation | Customer relationships          
Business Combination [Line Items]          
Intangible assets $ 11        
LinQuest Corporation          
Business Combination [Line Items]          
Goodwill   $ 526      
Cash consideration paid   739      
Intangible assets   $ 200      
Weighted average amortization period   14 years      
v3.25.2
Discontinued Operations (Narrative) (Details)
Jul. 04, 2025
Abandonment | HomeSafe  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Discontinued operation, ownership percentage in disposed asset 72.00%
v3.25.2
Discontinued Operations (Components of Net Income (Loss) Attributable to KBR From Discontinued Operations) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Jul. 04, 2025
Jun. 28, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Net income (loss) from discontinued operations, net of tax $ (48) $ 1 $ (54) $ 1
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations (16) 1 (18) 1
Net loss attributable to KBR from discontinued operations (32) 0 (36) 0
Abandonment | HomeSafe        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenues 27 8 64 8
Cost of revenues (40) (7) (79) (7)
Gross profit (loss) (13) 1 (15) 1
Selling, general and administrative expenses (22) 0 (27) 0
Loss on disposal (22) 0 (22) 0
Operating income (loss) (57) 1 (64) 1
Income (loss) from discontinued operations before income taxes (57) 1 (64) 1
Provision for income taxes 9 0 10 0
Net income (loss) from discontinued operations, net of tax (48) 1 (54) 1
Less: Net income (loss) attributable to noncontrolling interests included in discontinued operations (16) 1 (18) 1
Net loss attributable to KBR from discontinued operations (32) 0 (36) 0
Asset impairments related to property, plant and equipment 64 64 64 64
Asset write-offs 30 30 30 30
Elimination of other liabilities $ 72 $ 72 $ 72 $ 72
v3.25.2
Discontinued Operations (Classes of Assets and Liabilities of Discontinued Operations) (Details) - USD ($)
$ in Millions
Jul. 04, 2025
Jan. 03, 2025
Assets    
Total current assets of discontinued operations $ 30 $ 21
Total non-current assets of discontinued operations 0 78
Liabilities    
Total current liabilities of discontinued operations 38 15
Total non-current liabilities of discontinued operations 0 69
Abandonment | HomeSafe    
Assets    
Cash and equivalents 1 8
Accounts receivable, net of allowance for credit losses 14 5
Contract assets 3 2
Other current assets 12 6
Total current assets of discontinued operations 30 21
Property, plant, and equipment, net of accumulated depreciation 0 52
Other assets 0 26
Total non-current assets of discontinued operations 0 78
Liabilities    
Accounts payable 24 5
Contract liabilities 0 8
Accrued salaries, wages and benefits 3 2
Other current liabilities 11 0
Total current liabilities of discontinued operations 38 15
Other liabilities 0 69
Total non-current liabilities of discontinued operations $ 0 $ 69