Business Segments - Rationalizations, Asset Sales, Other Expense and Asset Write-offs and Accelerated Depreciation Attributable to the SBUs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Goodwill and Other Asset Impairments	$ 330
Rationalizations	159	$ 205	$ 44
Asset write-Offs and accelerated depreciation	105	15	4
Americas
Segment Reporting Information [Line Items]
Asset write-Offs and accelerated depreciation	103	13
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Asset write-Offs and accelerated depreciation	2	2	4
Operating Segments
Segment Reporting Information [Line Items]
Rationalizations	157	205	42
Net (gains) losses on asset sales	2	(16)	(273)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Goodwill and Other Asset Impairments	148
Rationalizations	94	90	3
Net (gains) losses on asset sales			(275)
Operating Segments | Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Goodwill and Other Asset Impairments	182
Rationalizations	59	115	36
Net (gains) losses on asset sales	2	$ (16)	2
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Rationalizations	4		3
Corporate
Segment Reporting Information [Line Items]
Rationalizations	$ 2		$ 2