Restructuring Accruals (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring accrual
Beginning balance, restructuring reserve	$ 87	$ 111	$ 85	$ 85
Charges			70	48
Write-down of assets to net realizable value			(53)	(9)
Net cash paid, principally severance and related benefits	(9)	(14)	(21)	(30)
Other, including foreign exchange translation	(3)	1	(6)	4
Ending balance, restructuring reserve	75	98	75	98
Restructuring, Additional Information
Carrying value of impaired assets	3	0	3	0
Cost of goods sold
Restructuring accrual
Charges			5
Other expense, net
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	71	94	67	67
Charges			15	34
Net cash paid, principally severance and related benefits	(8)	(11)	(18)	(21)
Other, including foreign exchange translation	(1)	1	(2)	4
Ending balance, restructuring reserve	62	84	62	84
Asset Impairment
Restructuring accrual
Charges			53	9
Write-down of assets to net realizable value			(53)	(9)
Other Exit Costs
Restructuring accrual
Beginning balance, restructuring reserve	16	17	18	18
Charges			2	5
Net cash paid, principally severance and related benefits	(1)	(3)	(3)	(9)
Other, including foreign exchange translation	(2)		(4)
Ending balance, restructuring reserve	$ 13	$ 14	$ 13	$ 14