Business Segments - Charges and Credits Attributable to the SBUs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Rationalizations	$ 27	$ 48	$ 56	$ 59
Net (gains) losses on asset sales	(12)	0	(13)	(1)
Asset write-offs and accelerated depreciation	21	5	29	7
Americas
Segment Reporting Information [Line Items]
Net (gains) losses on asset sales	(2)	0	(3)	0
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Net (gains) losses on asset sales	(10)	0	(10)	0
Asset write-offs and accelerated depreciation	21	5	29	7
Asia Pacific
Segment Reporting Information [Line Items]
Net (gains) losses on asset sales	0	0	0	(1)
Operating Segments
Segment Reporting Information [Line Items]
Rationalizations	27	47	56	58
Operating Segments | Americas
Segment Reporting Information [Line Items]
Rationalizations	1	1	2	4
Operating Segments | Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Rationalizations	26	45	53	53
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Rationalizations	0	1	1	1
Corporate
Segment Reporting Information [Line Items]
Rationalizations	$ 0	$ 1	$ 0	$ 1