Condensed Statement of Financial Position (Unaudited) (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Balance Sheet Related Disclosures [Abstract]
Accumulated amortization	$ 23,671	$ 23,615
Preferred Stock, Par or Stated Value Per Share	$ 0.01
Preferred Stock, Shares Authorized	750,000
Preferred Stock, Shares Issued	22,500
Preferred Stock, Shares Outstanding	22,500
Common Stock, Par or Stated Value Per Share	$ 14	$ 14
Common Stock, Shares Authorized	4,166,000	4,166,000
Common Stock, Shares, Issued	1,000	1,000
Common Stock, Shares, Outstanding	1,000	1,000
Assets of consolidated variable interest entities that can only be used to settle the liabilities of those VIEs	47,499
Net financing receivables of certain VIEs that can only be used to settle the liabilities of those VIEs	38,554
Investment securities of certain VIEs that can only be used to settle the liabilities of those VIEs	4,874
Non-recourse borrowings of CSEs	29,796
Sum of accumulated other comprehensive income - net	(1,754)	(2,096)
Accumulated other comprehensive income - net attributable to noncontrolling interests	$ (142)	$ (141)