Condensed Consolidated Statement of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Jun. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net sales	$ 3,980	$ 3,408	$ 11,406	$ 10,269
Cost of sales, exclusive of depreciation and amortization	2,238	1,983	6,528	5,995
Selling, general and administrative	964	779	2,742	2,394
Depreciation	91	78	262	233
Amortization (Note 7)	28	27	88	82
Research and development	123	112	362	335
Interest expense	48	54	148	155
Interest income	(11)	(10)	(30)	(29)
Restructuring provision (Note 8)	98	0	98	208
Asbestos settlement – net (Note 19)	3	3	9	9
Other charges (Note 19)	120	20	168	206
Other income	(31)	(40)	(85)	(100)
Income before income taxes	309	402	1,116	781
Income tax expense (Note 12)	60	92	242	159
Income from continuing operations	249	310	874	622
Income from discontinued operations, net of income taxes (Note 5)	6	54	2,197	189
Net income attributable to the controlling and noncontrolling interests	255	364	3,071	811
Less: Net income attributable to noncontrolling interests	(29)	(25)	(94)	(97)
Net income (attributable to PPG)	226	339	2,977	714
Income from continuing operations, net of tax	220	288	780	535
Income from discontinued operations, net of tax (Note 5)	$ 6	$ 51	$ 2,197	$ 179
Income from continuing operations, net of tax	$ 1.54	$ 1.88	$ 5.40	$ 3.49
Income from discontinued operations, net of tax	$ 0.04	$ 0.33	$ 15.21	$ 1.17
Net income (attributable to PPG)	$ 1.58	$ 2.21	$ 20.61	$ 4.66
Income from continuing operations, net of tax	$ 1.52	$ 1.86	$ 5.34	$ 3.46
Income from discontinued operations, net of tax	$ 0.04	$ 0.32	$ 15.05	$ 1.15
Net income (attributable to PPG)	$ 1.56	$ 2.18	$ 20.39	$ 4.61
Dividends per common share	$ 0.61	$ 0.59	$ 1.81	$ 1.75