Condensed Consolidated Statement of Cash Flows - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities:
Net income attributable to the controlling and noncontrolling interests	$ 348	$ 596
Less: Income from discontinued operations	(3)	(2)
Income from continuing operations	345	594
Adjustments to reconcile net income to cash from operations:
Depreciation and amortization	252	244
Pension expense	20	25
Debt extinguishment charge	7	0
Environmental remediation charges	12	40
Business restructuring, net	172	173
Stock-based compensation expense	15	19
Equity affiliate income, net of dividends	(4)	(6)
Deferred income taxes	(8)	(7)
Cash contributions to pension plans	(5)	(6)
Cash used for restructuring actions	(34)	(23)
Change in certain asset and liability accounts (net of acquisitions):
Receivables	92	(431)
Inventories	(29)	(97)
Other current assets	18	(70)
Accounts payable and accrued liabilities	(347)	60
Taxes and interest payable	(58)	(21)
Noncurrent assets and liabilities, net	5	(10)
Other	(140)	(10)
Cash from operating activities - continuing operations	321	486
Cash from/(used for) operating activities - discontinued operations	1	(4)
Cash from operating activities	322	482
Investing activities:
Capital expenditures	(92)	(133)
Business acquisitions, net of cash balances acquired	(45)	(361)
Payments for the settlement of cross currency swap contracts	(3)	(6)
Proceeds from the settlement of cross currency swap contracts	12	19
Other	17	24
Cash used for investing activities	(111)	(457)
Financing activities:
Net change in borrowing with maturities of three months or less	(7)	6
Proceeds on commercial paper and short-term debt, net of payments	1,434	470
Proceeds from revolving credit facility	800	0
Repayments of Lines of Credit	(800)	0
Proceeds from the issuance of debt, net of discounts and fees	296	0
Repayment of long-term debt	(506)	(2)
Repayment of acquired debt	9	23
Purchase of treasury stock	0	(175)
Issuance of treasury stock	6	22
Payments related to tax withholding on stock-based compensation awards	(8)	(12)
Dividends paid on PPG common stock	(241)	(227)
Other	(38)	(27)
Cash from financing activities	927	32
Effect of currency exchange rate changes on cash and cash equivalents	(102)	4
Net increase in cash and cash equivalents	1,036	61
Cash and cash equivalents, beginning of period	1,216	902
Cash and cash equivalents, end of period	2,252	963
Interest paid, net of amount capitalized	82	68
Taxes paid, net of refunds	$ 187	$ 194
Reissuance of common stock for business acquisition	0	164