PLEDGED ASSETS, COLLATERAL, GUARANTEES AND COMMITMENTS (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Credit Commitments
Credit Commitments	$ 911,838,000,000	$ 884,327,000,000
Commercial and similar letters of credit
Credit Commitments
Credit Commitments	7,341,000,000	7,311,000,000
One-to four-family residential mortgages
Credit Commitments
Credit Commitments	4,946,000,000	3,893,000,000
Revolving open-end loans secured by one-to four-family residential properties
Credit Commitments
Credit Commitments	16,781,000,000	18,176,000,000
Commercial real estate, construction and land development
Credit Commitments
Credit Commitments	2,725,000,000	3,496,000,000
Credit card lines
Credit Commitments
Credit Commitments	641,111,000,000	620,700,000,000
Commercial and other consumer loan commitments
Credit Commitments
Credit Commitments	236,712,000,000	228,492,000,000
Commercial and other consumer loan commitments, original maturity of less than one year	58,000,000,000	53,000,000,000
Other commitments and contingencies
Credit Commitments
Credit Commitments	2,222,000,000	2,259,000,000
U.S.
Credit Commitments
Credit Commitments	669,631,000,000
U.S. | Commercial and similar letters of credit
Credit Commitments
Credit Commitments	1,427,000,000
U.S. | One-to four-family residential mortgages
Credit Commitments
Credit Commitments	1,684,000,000
U.S. | Revolving open-end loans secured by one-to four-family residential properties
Credit Commitments
Credit Commitments	13,879,000,000
U.S. | Commercial real estate, construction and land development
Credit Commitments
Credit Commitments	1,830,000,000
U.S. | Credit card lines
Credit Commitments
Credit Commitments	507,913,000,000
U.S. | Commercial and other consumer loan commitments
Credit Commitments
Credit Commitments	141,287,000,000
U.S. | Other commitments and contingencies
Credit Commitments
Credit Commitments	1,611,000,000
Outside U.S.
Credit Commitments
Credit Commitments	242,207,000,000
Outside U.S. | Commercial and similar letters of credit
Credit Commitments
Credit Commitments	5,914,000,000
Outside U.S. | One-to four-family residential mortgages
Credit Commitments
Credit Commitments	3,262,000,000
Outside U.S. | Revolving open-end loans secured by one-to four-family residential properties
Credit Commitments
Credit Commitments	2,902,000,000
Outside U.S. | Commercial real estate, construction and land development
Credit Commitments
Credit Commitments	895,000,000
Outside U.S. | Credit card lines
Credit Commitments
Credit Commitments	133,198,000,000
Outside U.S. | Commercial and other consumer loan commitments
Credit Commitments
Credit Commitments	95,425,000,000
Outside U.S. | Other commitments and contingencies
Credit Commitments
Credit Commitments	$ 611,000,000