Income Taxes

9 Months Ended

Sep. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

	Nine Months Ended September 30
	2024		2023
Effective tax rate on pretax income	22.9	%	22.5	%

Income tax expense for the nine months ended September 30, 2024 and 2023 is based on an estimated annual effective rate, which requires management to make its best estimate of annual pretax income or loss. During the year, PPG management regularly updates forecasted annual pretax results for the various countries in which PPG operates based on changes in factors such as prices, shipments, product mix, raw material inflation and manufacturing operations. To the extent that actual 2024 pretax results for U.S. and foreign income or loss vary from estimates, the actual Income tax expense recognized in 2024 could be different from the forecasted amount used to estimate Income tax expense for the nine months ended September 30, 2024.