Restructuring Accruals (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restructuring accrual
Beginning balance, restructuring reserve	$ 80	$ 104	$ 85	$ 85
Charges	70	10	70	48
Write-down of assets to net realizable value	(53)		(53)	(9)
Net cash paid, principally severance and related benefits	(6)	(8)	(12)	(16)
Other, including foreign exchange translation	(4)	5	(3)	3
Ending balance, restructuring reserve	87	111	87	111
Restructuring, Additional Information
Carrying value of impaired assets	3	0	3	0
Cost of goods sold
Restructuring accrual
Charges			5
Other expense
Restructuring accrual
Charges			65
Americas
Restructuring, Additional Information
Employee costs, asset impairments and other exit costs				35
Europe
Restructuring, Additional Information
Employee costs, asset impairments and other exit costs				13
Employee Costs
Restructuring accrual
Beginning balance, restructuring reserve	63	87	67	67
Charges	15	10	15	34
Net cash paid, principally severance and related benefits	(5)	(5)	(10)	(10)
Other, including foreign exchange translation	(2)	2	(1)	3
Ending balance, restructuring reserve	71	94	71	94
Asset Impairment
Restructuring accrual
Charges	53		53	9
Write-down of assets to net realizable value	(53)		(53)	(9)
Other Exit Costs
Restructuring accrual
Beginning balance, restructuring reserve	17	17	18	18
Charges	2		2	5
Net cash paid, principally severance and related benefits	(1)	(3)	(2)	(6)
Other, including foreign exchange translation	(2)	3	(2)
Ending balance, restructuring reserve	$ 16	$ 17	$ 16	$ 17