Segments Operations Reporting by Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Loans and Leases Receivable, Net Amount	$ 23,867	$ 10,998
Assets	31,884	16,197
North America [Member]
Segment Reporting Information [Line Items]
Loans and Leases Receivable, Net Amount	12,232
Assets	18,970
International [Member]
Segment Reporting Information [Line Items]
Loans and Leases Receivable, Net Amount	11,635
Assets	$ 12,914