SECURITIZATIONS AND VARIABLE INTEREST ENTITIES (Details 4) (USD $) In Billions	Jun. 30, 2011	Dec. 31, 2010
Citicorp
Securitized credit card receivables
Principal amount of credit card receivables in trusts	$ 61.3	$ 67.5
Ownership interests in principal amount of trust credit card receivables
Sold to investors via trust-issued securities	32.2	42.0
Retained by Citigroup as trust-issued securities	8.5	3.4
Retained by Citigroup via non-certificated interests recorded as consumer loans	20.6	22.1
Total ownership interests in principal amount of trust credit card receivables	61.3	67.5
Citi Holdings
Securitized credit card receivables
Principal amount of credit card receivables in trusts	30.2	34.1
Ownership interests in principal amount of trust credit card receivables
Sold to investors via trust-issued securities	13.1	16.4
Retained by Citigroup as trust-issued securities	7.1	7.1
Retained by Citigroup via non-certificated interests recorded as consumer loans	10.0	10.6
Total ownership interests in principal amount of trust credit card receivables	$ 30.2	$ 34.1