Segments Operations Reporting by Revenue (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 1,097	$ 540
Operating Expenses	425
Provision for Loan, Lease, and Other Losses	135
Interest expense	315	82
Income before income taxes	222	170
Operating Segments [Member] | North America Segment [Member]
Segment Reporting Information [Line Items]
Revenues	636
Operating Expenses	274
Provision for Loan, Lease, and Other Losses	103
Interest expense	92
Income before income taxes	167
Operating Segments [Member] | International Segment [Member]
Segment Reporting Information [Line Items]
Revenues	461
Operating Expenses	151
Provision for Loan, Lease, and Other Losses	32
Interest expense	214
Income before income taxes	64
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenues	16
Operating Expenses	0
Provision for Loan, Lease, and Other Losses	0
Interest expense	25
Income before income taxes	(9)
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(16)
Interest expense	(16)
Income before income taxes	$ 0