Gross Realized Gains and Losses on Sales and OTTI on Securities Available for Sale (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Gross realized gains	$ 1,944	[1]	$ 4		$ 1,980	[1]	$ 180
Gross realized losses	0		(2)		0		(80)
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	(3)		0		(7)		(2)
Gain (Loss) on Sale of Securities, Net	$ 1,941	[2]	$ 2	[2]	$ 1,973	[2]	$ 98	[2]

[1] Included in these amounts are $305 million in losses recognized during the three and nine months ended September 30, 2012 related to the termination of the Agreements that hedge the Coke common stock.

[2] Includes credit-related OTTI losses of $3 million and $7 million for the three and nine months ended September 30, 2012, respectively, and $0 and $2 million for the three and nine months ended September 30, 2011, respectively. There were no non-credit related unrealized OTTI losses recorded in OCI, before taxes, for the three and nine months ended September 30, 2012 and 2011.