Condensed Consolidated Statement of Cash Flows - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income attributable to the controlling and noncontrolling interests	$ 248	$ 317
Adjustments to reconcile net income to cash from operations:
Depreciation and amortization	129	118
Pension expense	10	12
Environmental remediation charges	8	10
Business restructuring, net	7	(3)
Stock-based compensation expense	7	9
Equity affiliate income, net of dividends	4	4
Deferred income taxes	(4)	(32)
Cash contributions to pension plans	(2)	(3)
Cash used for restructuring actions	(18)	(15)
Change in certain asset and liability accounts (net of acquisitions):
Receivables	(58)	(299)
Inventories	(206)	(152)
Other current assets	(28)	(56)
Accounts payable and accrued liabilities	(87)	(24)
Taxes and interest payable	(28)	42
Noncurrent assets and liabilities, net	(27)	(22)
Other	(106)	36
Cash used for operating activities	(159)	(66)
Investing activities:
Capital expenditures	(37)	(47)
Business acquisitions, net of cash balances acquired	(44)	(57)
Payments for the settlement of cross currency swap contracts	(2)	(6)
Proceeds from the settlement of cross currency swap contracts	10	16
Other	14	8
Cash used for investing activities	(59)	(86)
Financing activities:
Proceeds on commercial paper and short-term debt, net of payments	371	309
Proceeds from revolving credit facility	800	0
Repayment of long-term debt	(5)	(1)
Repayment of acquired debt	8	0
Purchase of treasury stock	0	(175)
Issuance of treasury stock	5	7
Payments related to tax withholding on stock-based compensation awards	(7)	(8)
Dividends paid on PPG common stock	(120)	(113)
Other	(24)	13
Cash from financing activities	1,012	32
Effect of currency exchange rate changes on cash and cash equivalents	(124)	2
Net increase/(decrease) in cash and cash equivalents	670	(118)
Cash and cash equivalents, beginning of period	1,216	902
Cash and cash equivalents, end of period	1,886	784
Interest paid, net of amount capitalized	48	40
Taxes paid, net of refunds	$ 90	$ 94
Reissuance of common stock for business acquisition	0	164