Business Segments - Charges and Credits Attributable to the SBUs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Rationalizations	$ 4	$ (2)	$ 107	$ 35
Total Net (Gains) Losses on Asset Sales	(1)	(2)	(6)	0
Asset write-offs and accelerated depreciation	1	1	1	2
Americas
Segment Reporting Information [Line Items]
Total Net (Gains) Losses on Asset Sales	0	(2)	0	(2)
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Total Net (Gains) Losses on Asset Sales	(1)	0	(6)	2
Asset write-offs and accelerated depreciation	1	1	1	2
Operating Segments
Segment Reporting Information [Line Items]
Rationalizations	4	(1)	107	32
Operating Segments | Americas
Segment Reporting Information [Line Items]
Rationalizations	2	0	9	3
Operating Segments | Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Rationalizations	2	(1)	98	26
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Rationalizations	0	0	0	3
Corporate
Segment Reporting Information [Line Items]
Rationalizations	$ 0	$ (1)	$ 0	$ 3