Gross Realized Gains and Losses on Sales and OTTI on Securities Available for Sale (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Gross realized gains	$ 39		$ 1,981	[1]	$ 210
Available-for-sale Securities, Gross Realized Losses	(36)		0		(87)
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	(1)		(7)		(6)
Gain (Loss) on Sale of Securities, Net	$ 2	[2]	$ 1,974	[2]	$ 117	[2]

[1] Included in this amount is $305 million in losses recognized during the year ended December 31, 2012 related to the termination of the Agreements that hedged the Coke common stock.

[2] Total OTTI was $0, $1 million, and $2 million for the years ended December 31, 2013, 2012, and 2011, respectively. Of total OTTI, losses of $1 million, $7 million, and $6 million were recognized in earnings, and gains of $1 million, $6 million, and $4 million were recognized as non-credit-related OTTI in OCI for the years ended December 31, 2013, 2012, and 2011, respectively.