Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2023
Document and Entity Information [Abstract]
Document Type	PRE 14A
Entity Registrant Name	PPG Industries, Inc.
Entity Central Index Key	0000079879
Amendment Flag	false

Pay vs Performance Disclosure

12 Months Ended

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


					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)		SHARE
2023	$	6,900,724	$	10,399,261	$	3,277,495	$	4,865,611	$	120	$	120	$	1,270	$	7.50
2022	$	8,867,377	$	238,659	$	2,280,483	$	(26,911)	$	99	$	101	$	1,028	$	6.22
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 Mr. Knavish was principle executive officer for 2023.

(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.

(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, 2022.

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 Mr. Knavish was principle executive officer for 2023.

(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, 2022.

PEO Total Compensation Amount

$ 6,900,724

$ 8,867,377

$ 13,199,616

$ 15,903,993

PEO Actually Paid Compensation Amount

$ 10,399,261

238,659

22,568,453

16,689,353

Adjustment To PEO Compensation, Footnote

A reconciliation of PEO SCT total compensation to CAP is provided in the following table.

PEO SCT Total Compensation to CAP Reconciliation (2021-20223


											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
2023	$	6,900,724	$	(711,688)	$	—	$	(4,898,968)	$	5,161,497	$	2,019,787	$	1,927,910	$	10,399,261
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

$ 3,277,495

2,280,483

3,035,088

3,607,399

Non-PEO NEO Average Compensation Actually Paid Amount

$ 4,865,611

(26,911)

5,267,224

3,526,539

Adjustment to Non-PEO NEO Compensation Footnote

A reconciliation of average non-PEO SCT total compensation to CAP is provided in the following table.

Average Non-PEO NEOs SCT Total Compensation to CAP Reconciliation (2021-20223



											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
2023	$	3,277,495	$	(245,779)	$	—	$	(2,279,917)	$	2,546,287	$	753,488	$	814,038	$	—	$	4,865,611
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

As shown in the chart below, the PEO and other NEOs’ CAP amounts are aligned with the Company’s TSR. This is due primarily to the Company’s use of equity incentives, which are tied directly to stock price in addition to the Company’s financial performance.

Compensation Actually Paid vs. Net Income

As shown in the chart below, the Company’s net income is aligned with the Company’s net income. This is due in large part to the significant emphasis the Company places on equity incentives, which are sensitive to changes in stock price. In addition, the Company does not use net income to determine compensation levels or incentive plan payouts.

Compensation Actually Paid vs. Company Selected Measure

The chart below compares the PEO and the other non-PEO NEOs’ CAP to PPG’s company-selected measure, adjusted earnings per diluted share, which indicates there is a very strong relationship between adjusted earnings per diluted share and CAP. This is due primarily to the Company’s use of equity incentives, which are tied directly to stock price in addition to the Company’s financial performance.

Total Shareholder Return Vs Peer Group

As shown in the chart below, the Company’s TSR performance for the immediately preceding three years was aligned with the companies included in the peer group, and when the six-year TSR is compared to peers, the Company has outperformed the peers.

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.

Tabular List, Table

The three items listed below represent the most important financial performance measures used by PPG to link compensation actually paid to our named executive officers for 2023 to the Company’s performance:

MOST IMPORTANT PERFORMANCE MEASURES

Adjusted earnings per diluted share

Cash flow return on capital

Total shareholder return

Total Shareholder Return Amount

$ 120

133

110

Peer Group Total Shareholder Return Amount

120

101

135