Accounts Receivable Securitization and Factoring Programs - Additional Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) bank	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) bank	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Apr. 30, 2017 USD ($)
Transfers of Servicing of Financial Assets [Line Items]
Number of commercial banks with accounts receivable securitization programs | bank	3		3
Proceeds from deferred purchase price of factored receivables	$ 32	$ 27	$ 66	$ 49
Term of commitments (in years)			1 year
Term of commitments, cancellation period (in days)			90 days
US
Transfers of Servicing of Financial Assets [Line Items]
Outstanding third party investments in securitized accounts receivable bank program	10		$ 10		$ 30
Securitization interest expense	1	1		$ 2
Financing cost related to sale of securitized receivables percentage			3.00%	2.00%
Europe
Transfers of Servicing of Financial Assets [Line Items]
Outstanding third party investments in securitized accounts receivable bank program	255		$ 255		218
Proceeds from deferred purchase price of factored receivables	32	27	66	$ 49
Loss on sale of trade accounts receivable	2	$ 1	$ 4	$ 2
Financing cost related to sale of securitized receivables percentage			2.00%	2.00%
Amended and Extended Accounts Receivable Securitization Program
Transfers of Servicing of Financial Assets [Line Items]
North American program maximum facility size						$ 155
Additional Financing from second priority facility						$ 25
New Accounts Receivable Factoring Program | US
Transfers of Servicing of Financial Assets [Line Items]
Outstanding third party investments in securitized accounts receivable bank program	$ 122		$ 122		$ 107