Reportable Segment Information (Segment Net Sales and Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 3,935	$ 3,774	$ 11,653	$ 10,765
Segment income (loss)	618	552	1,742	1,497
Legacy items	(25)	(99)	(46)	(156)
Business restructuring	0	98	0	98
Acquisition-related (costs) gain, net	(4)	(6)	(10)	(31)
Interest expense, net of interest income	(34)	(37)	(104)	(118)
Other unallocated corporate expense - net	(56)	(65)	(187)	(184)
Income before income taxes	499	247	1,395	910
Performance Coatings Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	2,257	2,190	6,607	6,027
Segment income (loss)	345	325	966	841
Business restructuring		79
Industrial Coatings Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	1,395	1,306	4,208	3,935
Segment income (loss)	240	206	728	622
Business restructuring		14
Glass Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	283	278	838	803
Segment income (loss)	33	21	48	34
Business restructuring		$ 4