Interest and dividends on SAFS (parenthetical) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]
Dividends On Certain Equity Securities	$ 31	[1]	$ 56	[1]	$ 53	[1]

[1] Includes dividends on common stock of The Coca-Cola Company of $31 million, $56 million, and $53 million during the years ended December 31, 2012, 2011, and 2010, respectively.