Fair Value Option - Fair Value Option on Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Fair Value Disclosures [Abstract]
Long-term debt	$ 8,025		$ 9,725
Due to affiliates	496		514
Total fixed rate debt accounted for under FVO	8,521		10,239
Unpaid principal balance of fixed rate debt accounted for under FVO	7,942	[1]	9,415	[1]
Fixed rate long-term debt not accounted for under FVO	$ 7,083		$ 8,057

[1] Balance includes a foreign currency translation adjustment relating to our foreign denominated FVO debt which increased the debt balance by $245 million and $247 million at December 31, 2013 and December 31, 2012, respectively.