Condensed Consolidated Statement of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net sales	$ 3,569	$ 3,544
Cost of sales, exclusive of depreciation and amortization	1,969	1,920
Selling, general and administrative	896	906
Depreciation	83	85
Amortization	31	30
Research and development, net	110	116
Interest expense	25	30
Interest income	(4)	(6)
Pension settlement charges	22	0
Asbestos settlement, net	0	3
Other charges	14	21
Other income	(25)	(17)
Income from continuing operations before income taxes	448	456
Income tax expense	109	112
Income from continuing operations	339	344
Income from discontinued operations, net of tax	0	10
Net income attributable to the controlling and noncontrolling interests	339	354
Less: Net income attributable to noncontrolling interests	(5)	(7)
Net income (attributable to PPG)	334	347
Income from continuing operations, net of tax	334	337
Income from discontinued operations, net of tax	$ 0	$ 10
Income from continuing operations, net of tax (in usd per share)	$ 1.30	$ 1.26
Income from discontinued operations, net of tax (in usd per share)	0.00	0.04
Net income (attributable to PPG) (in usd per share)	1.30	1.30
Income from continuing operations, net of tax (in usd per share)	1.29	1.25
Income from discontinued operations, net of tax (in usd per share)	0.00	0.04
Net income (attributable to PPG) (in usd per share)	1.29	1.29
Dividends per common share (in usd per share)	$ 0.40	$ 0.36