Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2024
Document and Entity Information [Abstract]
Document Type	DEF 14A
Entity Registrant Name	PPG Industries, Inc.
Entity Central Index Key	0000079879
Amendment Flag	false

Pay vs Performance Disclosure

12 Months Ended

Dec. 31, 2024

USD ($)

$ / shares

Dec. 31, 2023

USD ($)

$ / shares

Dec. 31, 2022

USD ($)

$ / shares

Dec. 31, 2021

USD ($)

$ / shares

Dec. 31, 2020

USD ($)

$ / shares

Pay vs Performance Disclosure

Pay vs Performance Disclosure, Table


															COMPANY
					AVERAGE			AVERAGE							SELECTED
					SUMMARY			COMP.	VALUE OF INITIAL FIXED $100						MEASURE:
					COMP. TABLE		ACTUALLY PAID		INVESTMENT BASED ON:						ADJUSTED
	SUMMARY		COMP.		TOTAL FOR		TO NON-PEO				PEER GROUP⁽³⁾				EARNINGS
	COMP. TABLE		ACTUALLY		NON-PEO NAMED		NAMED		TOTAL		TOTAL		NET		PER
	TOTAL FOR		PAID TO		EXECUTIVE		EXECUTIVE		SHAREHOLDER		SHAREHOLDER		INCOME		DILUTED
YEAR	PEO⁽¹⁾		PEO⁽¹⁾		OFFICERS⁽²⁾		OFFICERS⁽²⁾		RETURN		RETURN		(in millions)⁽⁴⁾		SHARE⁽⁴⁾
2024	$	11,724,469	$	3,687,813	$	2,792,842	$	1,144,265	$	98	$	138	$	1,344	$	7.87
2023	$	12,472,955	$	15,222,098	$	4,903,304	$	6,491,421	$	120	$	122	$	1,223	$	7.42
2022	$	8,867,377	$	238,659	$	2,280,483	$	(26,911)	$	99	$	102	$	1,007	$	5.84
2021	$	13,199,616	$	22,568,453	$	3,035,088	$	5,267,224	$	133	$	135	$	1,420	$	6.77
2020	$	15,903,993	$	16,689,353	$	3,607,399	$	3,526,539	$	110	$	112	$	1,056	$	6.12

(1)	The principal executive officer was Mr. McGarry for years 2020-2022 and the principal executive officer for 2023 and 2024 was Mr. Knavish.

(2)

The non-principal executive officer named executive officers were Mr. Morales, Mr. Knavish, Ms. Liebert and Ms. Foulkes for years 2020-2022. For 2023, the non-principal executive officer named executive officers were Mr. McGarry, Mr. Morales, Ms. Foulkes and Mr. Vadlamannati. Ms. Ericson was included as a non-principal executive officer named executive officer for 2023. For 2024, the non-principal executive officer named executive officers were Mr. Morales, Ms. Foulkes, Mr. Bergström, Mr. Vadlamannati, and Mr. Hagerty.

(3)	The peer group consists of: 3M Co., Akzo Nobel N.V., Axalta Coatings Systems Ltd., Dow, Inc., Dupont de Nemours, Inc., Eastman Chemical Co., Masco Corp., RPM International Inc., and The Sherwin-Williams Co. See Exhibit 13.1 of our Form 10-K for the year ended December 31, 2024.

(4)

From continuing operations. Recast to exclude the divested architectural coatings United States and Canada business for years 2022 and 2023. For the calculation of adjusted earnings per diluted share for the company performance component of the annual incentive award, an adjustment of $0.01 for currency translation was applied.

Company Selected Measure Name

Adjusted earnings per diluted share

Named Executive Officers, Footnote

(1)	The principal executive officer was Mr. McGarry for years 2020-2022 and the principal executive officer for 2023 and 2024 was Mr. Knavish.

(2)

Peer Group Issuers, Footnote

(3)	The peer group consists of: 3M Co., Akzo Nobel N.V., Axalta Coatings Systems Ltd., Dow, Inc., Dupont de Nemours, Inc., Eastman Chemical Co., Masco Corp., RPM International Inc., and The Sherwin-Williams Co. See Exhibit 13.1 of our Form 10-K for the year ended December 31, 2024.

PEO Total Compensation Amount

$ 11,724,469

$ 12,472,955

$ 8,867,377

$ 13,199,616

$ 15,903,993

PEO Actually Paid Compensation Amount

$ 3,687,813

15,222,098

238,659

22,568,453

16,689,353

Adjustment To PEO Compensation, Footnote

PEO SCT Total Compensation to CAP Reconciliation (2020-2024)


											PLUS CHANGE
											FROM BOY TO		PLUS CHANGE
									PLUS EOY		EOY IN FAIR		IN FAIR VALUE
									FAIR VALUE		VALUE OF		FROM BOY TO
									OF EQUITY		AWARDS		VESTING DATE
									AWARDS		GRANTED IN		OF AWARDS
									GRANTED		ANY PRIOR		GRANTED IN
					PLUS				DURING YEAR		YEAR		ANY PRIOR
			MINUS SCT		PENSION				THAT ARE		THAT ARE		YEAR THAT
	SCT		CHANGE IN		VALUE				OUTSTANDING		OUTSTANDING		VESTED
	TOTAL FOR		PENSION		SERVICE		MINUS SCT		AND UNVESTED		AND UNVESTED		DURING		PEO
YEAR	PEO		VALUE		COST		EQUITY		AT EOY		AT EOY		THE YEAR		CAP
2024	$	11,724,469	$	59,721	$	—	$	(8,750,401)	$	5,380,791	$	(3,833,975)	$	(892,792)	$	3,687,813
2023	$	12,472,955	$	(312,592)	$	—	$	(7,499,749)	$	9,111,166	$	744,589	$	705,729	$	15,222,098
2022	$	8,867,377	$	4,368,862	$	—	$	(10,000,026)	$	7,834,096	$	(4,197,554)	$	(6,634,096)	$	238,659
2021	$	13,199,616	$	218,598	$	—	$	(9,400,002)	$	10,917,328	$	4,275,913	$	3,357,000	$	22,568,453
2020	$	15,903,993	$	(4,289,632)	$	180,279	$	(8,249,709)	$	11,073,569	$	1,559,781	$	511,072	$	16,689,353

"EOY" = end of Year; "BOY" = Beginning of Year

Non-PEO NEO Average Total Compensation Amount

$ 2,792,842

4,903,304

2,280,483

3,035,088

3,607,399

Non-PEO NEO Average Compensation Actually Paid Amount

$ 1,144,265

6,491,421

(26,911)

5,267,224

3,526,539

Adjustment to Non-PEO NEO Compensation Footnote

Average Non-PEO NEOs SCT Total Compensation to CAP Reconciliation (2020-2024)


											PLUS CHANGE
											FROM BOY TO		PLUS CHANGE		MINUS FAIR
									PLUS EOY		EOY IN FAIR		IN FAIR VALUE		VALUE AT
									FAIR VALUE		VALUE OF		FROM BOY TO		BOY OF
									OF EQUITY		AWARDS		VESTING DATE		AWARDS
									AWARDS		GRANTED IN		OF AWARDS		GRANTED
									GRANTED		ANY PRIOR		GRANTED IN		IN PRIOR
					PLUS				DURING YEAR		YEAR		ANY PRIOR		YEAR THAT
	SCT		MINUS SCT		PENSION				THAT ARE		THAT ARE		YEAR THAT		WERE
	TOTAL FOR		CHANGE IN		VALUE				OUTSTANDING		OUTSTANDING		VESTED		FORFEITED		NON-PEO
	NON-PEO		PENSION		SERVICE		MINUS SCT		AND UNVESTED		AND UNVESTED		DURING		DURING		NEOs
YEAR	NEOs		VALUE		COST		EQUITY		AT EOY		AT EOY		THE YEAR		THE YEAR		CAP
2024	$	2,792,842	$	19,362	$	—	$	(1,500,219)	$	922,505	$	(701,109)	$	(389,116)	$	—	$	1,144,265
2023	$	4,903,304	$	(245,779)	$	—	$	(2,279,917)	$	2,546,286	$	753,488	$	814,038	$	—	$	6,491,421
2022	$	2,280,483	$	846,793	$	—	$	(1,970,003)	$	1,253,448	$	(546,994)	$	(815,908)	$	(1,074,730)	$	(26,911)
2021	$	3,035,088	$	105,473	$	—	$	(1,724,948)	$	2,003,403	$	1,388,365	$	459,843	$	—	$	5,267,224
2020	$	3,607,399	$	(995,665)	$	117,478	$	(1,399,950)	$	1,879,152	$	201,719	$	116,406	$	—	$	3,526,539

"EOY" = end of Year; "BOY" = Beginning of Year

Compensation Actually Paid vs. Total Shareholder Return

Compensation Actually Paid vs. Net Income

Compensation Actually Paid vs. Company Selected Measure

Total Shareholder Return Vs Peer Group

Tabular List, Table


											PLUS CHANGE
											FROM BOY TO		PLUS CHANGE		MINUS FAIR
									PLUS EOY		EOY IN FAIR		IN FAIR VALUE		VALUE AT
									FAIR VALUE		VALUE OF		FROM BOY TO		BOY OF
									OF EQUITY		AWARDS		VESTING DATE		AWARDS
									AWARDS		GRANTED IN		OF AWARDS		GRANTED
									GRANTED		ANY PRIOR		GRANTED IN		IN PRIOR
					PLUS				DURING YEAR		YEAR		ANY PRIOR		YEAR THAT
	SCT		MINUS SCT		PENSION				THAT ARE		THAT ARE		YEAR THAT		WERE
	TOTAL FOR		CHANGE IN		VALUE				OUTSTANDING		OUTSTANDING		VESTED		FORFEITED		NON-PEO
	NON-PEO		PENSION		SERVICE		MINUS SCT		AND UNVESTED		AND UNVESTED		DURING		DURING		NEOs
YEAR	NEOs		VALUE		COST		EQUITY		AT EOY		AT EOY		THE YEAR		THE YEAR		CAP
2024	$	2,792,842	$	19,362	$	—	$	(1,500,219)	$	922,505	$	(701,109)	$	(389,116)	$	—	$	1,144,265
2023	$	4,903,304	$	(245,779)	$	—	$	(2,279,917)	$	2,546,286	$	753,488	$	814,038	$	—	$	6,491,421
2022	$	2,280,483	$	846,793	$	—	$	(1,970,003)	$	1,253,448	$	(546,994)	$	(815,908)	$	(1,074,730)	$	(26,911)
2021	$	3,035,088	$	105,473	$	—	$	(1,724,948)	$	2,003,403	$	1,388,365	$	459,843	$	—	$	5,267,224
2020	$	3,607,399	$	(995,665)	$	117,478	$	(1,399,950)	$	1,879,152	$	201,719	$	116,406	$	—	$	3,526,539

"EOY" = end of Year; "BOY" = Beginning of Year

Total Shareholder Return Amount

$ 98

120

133

110

Peer Group Total Shareholder Return Amount

138

122

102

135

112

Net Income (Loss)

$ 1,344,000,000

$ 1,223,000,000

$ 1,007,000,000

$ 1,420,000,000

$ 1,056,000,000

Company Selected Measure Amount | $ / shares

7.87

7.42

5.84

6.77

6.12

PEO Name

Mr. Knavish

Foreign currency translation adjustment, per share | $ / shares

$ 0.01

Measure:: 1

Pay vs Performance Disclosure

Name

Adjusted earnings per diluted share

Measure:: 2

Pay vs Performance Disclosure

Name

Cash flow return on capital

Measure:: 3

Pay vs Performance Disclosure

Name

Total shareholder return

PEO | MINUS SCT CHANGE IN PENSION VALUE

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 59,721

$ (312,592)

$ 4,368,862

$ 218,598

$ (4,289,632)

PEO | PLUS PENSION VALUE SERVICE COST

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

180,279

PEO | MINUS SCT EQUITY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(8,750,401)

(7,499,749)

(10,000,026)

(9,400,002)

(8,249,709)

PEO | PLUS EOY FAIR VALUE OF EQUITY AWARDS GRANTED DURING YEAR THAT ARE OUTSTANDING AND UNVESTED AT EOY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

5,380,791

9,111,166

7,834,096

10,917,328

11,073,569

PEO | PLUS CHANGE FROM BOY TO EOY IN FAIR VALUE OF AWARDS GRANTED IN ANY PRIOR YEAR THAT ARE OUTSTANDING AND UNVESTED AT EOY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(3,833,975)

744,589

(4,197,554)

4,275,913

1,559,781

PEO | PLUS CHANGE IN FAIR VALUE FROM BOY TO VESTING DATE OF AWARDS GRANTED IN ANY PRIOR YEAR THAT VESTED DURING THE YEAR

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(892,792)

705,729

(6,634,096)

3,357,000

511,072

Non-PEO NEO | MINUS SCT CHANGE IN PENSION VALUE

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

19,362

(245,779)

846,793

105,473

(995,665)

Non-PEO NEO | PLUS PENSION VALUE SERVICE COST

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

117,478

Non-PEO NEO | MINUS SCT EQUITY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,500,219)

(2,279,917)

(1,970,003)

(1,724,948)

(1,399,950)

Non-PEO NEO | PLUS EOY FAIR VALUE OF EQUITY AWARDS GRANTED DURING YEAR THAT ARE OUTSTANDING AND UNVESTED AT EOY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

922,505

2,546,286

1,253,448

2,003,403

1,879,152

Non-PEO NEO | PLUS CHANGE FROM BOY TO EOY IN FAIR VALUE OF AWARDS GRANTED IN ANY PRIOR YEAR THAT ARE OUTSTANDING AND UNVESTED AT EOY

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(701,109)

753,488

(546,994)

1,388,365

201,719

Non-PEO NEO | PLUS CHANGE IN FAIR VALUE FROM BOY TO VESTING DATE OF AWARDS GRANTED IN ANY PRIOR YEAR THAT VESTED DURING THE YEAR

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ (389,116)

$ 814,038

(815,908)

$ 459,843

$ 116,406

Non-PEO NEO | MINUS FAIR VALUE AT BOY OF AWARDS GRANTED IN PRIOR YEAR THAT WERE FORFEITED DURING THE YEAR

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ (1,074,730)

Award Timing Disclosure	12 Months Ended
Award Timing Disclosure	Dec. 31, 2024
Award Timing Disclosures [Line Items]
Award Timing MNPI Disclosure	Equity awards may be granted by either the Human Capital Management and Compensation Committee or its delegate. The Human Capital Management and Compensation Committee only delegates authority to grant equity awards to employees who are not executive officers, and only in aggregate amounts not exceeding amounts approved by the Human Capital Management and Compensation Committee. The Board generally does not grant equity awards, although the Human Capital Management and Compensation Committee regularly reports its activity, including approval of grants, to the Board. Timing of Grants. Equity award grant values are determined in February at a regularly scheduled meeting of the Human Capital Management and Compensation Committee, and generally further grants are not made for the remainder of the year. These meetings occur approximately one month after the release of our earnings for the immediately preceding year. Beginning in February 2024, annual equity award grants are granted on the third business day after the filing of the Company’s Annual Report on Form 10-K based on grant values approved by the Human Capital Management and Compensation Committee at its February meeting. On limited occasions, grants may occur on an interim basis, primarily for the purpose of approving a compensation package for a newly hired or promoted executive officer. These grants are made on the second Friday of the second month of the quarter after the hire or promotion date; provided, however, that if the date of hire or promotion would fall within a Company imposed blackout period, the grant date will be the first business day following such blackout period. The timing of these grants is driven solely by the activity related to the need for the hiring or promotion, not our stock price or the timing of any release of Company information. Option Exercise Price. The exercise price of a newly granted stock option is the closing price on the New York Stock Exchange on the date of grant. With respect to the occasional interim grants of stock options to a newly hired or promoted executive, the exercise price is the closing price on the New York Stock Exchange on the date of grant, which is the second Friday of the second month of the quarter after the hire or promotion date; provided, however, that if the date of hire or promotion would fall within a Company imposed blackout period, the grant date will be the first business day following such blackout period.
Award Timing Method	Timing of Grants. Equity award grant values are determined in February at a regularly scheduled meeting of the Human Capital Management and Compensation Committee, and generally further grants are not made for the remainder of the year. These meetings occur approximately one month after the release of our earnings for the immediately preceding year. Beginning in February 2024, annual equity award grants are granted on the third business day after the filing of the Company’s Annual Report on Form 10-K based on grant values approved by the Human Capital Management and Compensation Committee at its February meeting. On limited occasions, grants may occur on an interim basis, primarily for the purpose of approving a compensation package for a newly hired or promoted executive officer. These grants are made on the second Friday of the second month of the quarter after the hire or promotion date; provided, however, that if the date of hire or promotion would fall within a Company imposed blackout period, the grant date will be the first business day following such blackout period. The timing of these grants is driven solely by the activity related to the need for the hiring or promotion, not our stock price or the timing of any release of Company information.

Insider Trading Policies and Procedures	12 Months Ended
Insider Trading Policies and Procedures	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true