Finance Receivables Credit Quality (Details) (Consumer Finance Receivables, North America Segment [Member], USD $) In Millions, unless otherwise specified	Sep. 30, 2014 Rate		Dec. 31, 2013 Rate
Financing Receivable, Recorded Investment [Line Items]
Finance Receivables Net of Fees	$ 12,674	[1]	$ 11,493	[1]
Finance Receivables Credit Indicator, Percentage	100.00%	[1]	100.00%	[1]
FICO Scores Less Than 540 [Member]
Financing Receivable, Recorded Investment [Line Items]
Finance Receivables Net of Fees	3,802		3,511
Finance Receivables Credit Indicator, Percentage	30.00%		30.60%
FICO score 540 to 599 [Member]
Financing Receivable, Recorded Investment [Line Items]
Finance Receivables Net of Fees	5,934		5,435
Finance Receivables Credit Indicator, Percentage	46.80%		47.30%
FICO score 600 to 659 [Member]
Financing Receivable, Recorded Investment [Line Items]
Finance Receivables Net of Fees	2,511		2,277
Finance Receivables Credit Indicator, Percentage	19.80%		19.80%
FICO score 660 and greater [Member]
Financing Receivable, Recorded Investment [Line Items]
Finance Receivables Net of Fees	$ 427		$ 270
Finance Receivables Credit Indicator, Percentage	3.40%		2.30%

[1] (a)Balance at the end of the period is the sum of pre-acquisition consumer finance receivables-outstanding balance and post-acquisition consumer finance receivables, net of fees for North America Segment.