Finance Receivables, Net (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance		$ 108	$ 110
Provision		9	9
Charge-offs		(10)	(10)
Recoveries and other	[1]	1	2
Ending Balance		108	111
Financing Receivable, Collectively Evaluated for Impairment	[2]	3,793	3,817
Allowance for credit losses not included in the impairment evaluation		108	111
United States
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance		56	55
Provision		5	4
Charge-offs		(5)	(6)
Recoveries and other	[1]	0	0
Ending Balance		56	53
Financing Receivable, Collectively Evaluated for Impairment	[2]	1,994	2,108
Canada
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance		15	16
Provision		0	0
Charge-offs		(1)	(2)
Recoveries and other	[1]	0	2
Ending Balance		14	16
Financing Receivable, Collectively Evaluated for Impairment	[2]	373	382
Europe
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance		35	37
Provision		4	5
Charge-offs		(4)	(2)
Recoveries and other	[1]	1	0
Ending Balance		36	40
Financing Receivable, Collectively Evaluated for Impairment	[2]	1,364	1,276
Other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	[3]	2	2
Provision	[3]	0	0
Charge-offs	[3]	0	0
Recoveries and other	[1],[3]	0	0
Ending Balance	[3]	2	2
Financing Receivable, Collectively Evaluated for Impairment	[2],[3]	$ 62	$ 51

[1] Includes the impacts of foreign currency translation and adjustments to reserves necessary to reflect events of non-payment such as customer accommodations and contract terminations.

[2] Total Finance receivables exclude the allowance for credit losses of $108 and $111 at March 31, 2018 and 2017, respectively.

[3] Includes developing market countries and smaller units.