Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income attributable to controlling and noncontrolling interests	$ 551	$ 1,109
Less: Income from discontinued operations	(46)	(49)
Income from continuing operations	505	1,060
Adjustments to reconcile net income to cash from operations:
Depreciation and amortization	349	352
Pension expense	60	74
Pension settlement charges	968	0
Stock-based compensation expense	38	42
Business restructuring	0	140
Gain on sale of equity affiliate	(20)	0
Equity affiliate earnings, net of distributions received	(8)	(20)
Deferred income tax benefit	(56)	(42)
Cash contributions to pension plans	(78)	(270)
Cash paid for restructuring actions	(40)	(31)
Cash paid for asbestos settlement funding	(813)	0
Change in certain asset and liability accounts:
Receivables	(250)	(413)
Inventories	(31)	(89)
Other current assets	(11)	(97)
Accounts payable and accrued liabilities	135	184
Taxes and interest payable	(127)	127
Noncurrent assets and liabilities, net	46	(67)
Other	0	(17)
Cash from operating activities - continuing operations	667	933
Cash from operating activities - discontinued operations	84	53
Cash from operating activities	751	986
Investing activities:
Capital expenditures	(258)	(262)
Business acquisitions, net of cash balances acquired	(321)	(248)
Proceeds from the disposition of PPG's interest in the Transitions Optical joint venture and sunlens business	0	47
Proceeds from sale of equity affiliate	41	0
Purchase of short-term investments	0	(97)
Proceeds from maturity of short-term investments	92	171
Payments for the settlement of cross currency swap contracts	(36)	(34)
Proceeds from cross currency swap and foreign currency contracts	37	37
Other	14	39
Cash used for investing activities - continuing operations	(431)	(347)
Cash used for investing activities - discontinued operations	(14)	(4)
Cash used for investing activities	(445)	(351)
Financing activities:
Net change in borrowing with maturities of three months or less	(22)	(18)
Net proceeds (payments) on commercial paper and short-term debt	297	(392)
Proceeds from the issuance of debt	1	1,242
Repayment of long-term debt	(254)	(339)
Purchase of treasury stock	(400)	(501)
Issuance of treasury stock	29	51
Dividends paid	(309)	(287)
Other	(9)	(24)
Cash used for financing activities - continuing operations	(667)	(268)
Cash used for financing activities - discontinued operations	0	0
Cash used for financing activities	(667)	(268)
Effect of currency exchange rate changes on cash and cash equivalents	(21)	(38)
Net (decrease) increase in cash and cash equivalents	(382)	329
Cash and cash equivalents, beginning of period	1,311	686
Cash and cash equivalents, end of period	929	1,015
Interest paid, net of amount capitalized	80	78
Taxes paid, net of refunds	$ 276	$ 291