Condensed Statement of Financial Position (Unaudited) (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Balance Sheet Related Disclosures [Abstract]
Accumulated amortization	$ 23,864	$ 23,615
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	46,412
Net financing receivables of certain VIEs that can only be used to settle the liabilities of those VIEs	37,733
Investment securities of certain VIEs that can only be used to settle the liabilities of those VIEs	5,146
Non-recourse borrowings of CSEs	28,844
Sum of accumulated other comprehensive income - net	(1,592)	(2,096)
Accumulated other comprehensive income - net attributable to noncontrolling interests	$ (131)	$ (141)