Business Segments - Rationalizations, Asset Sales, Other Expense and Asset Write-offs and Accelerated Depreciation Attributable to the SBUs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Goodwill Impairment	$ 0	$ 182
Rationalizations	50	9
Asset write-offs and accelerated depreciation	0	4
Americas
Segment Reporting Information [Line Items]
Asset write-offs and accelerated depreciation	0	4
Operating Segments
Segment Reporting Information [Line Items]
Rationalizations	46	9
Net (gains) losses on asset sales	0	(1)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Rationalizations	10	3
Operating Segments | Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Goodwill Impairment	0	182
Rationalizations	36	6
Net (gains) losses on asset sales	0	(1)
Corporate
Segment Reporting Information [Line Items]
Rationalizations	$ 4	$ 0