SECURITIZATIONS AND VARIABLE INTEREST ENTITIES (Details 5) (USD $) In Billions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 trust	Dec. 31, 2012 trust
Funding, Liquidity Facilities and Subordinated Interests
Number of trusts to hold securitized credit card receivables	2	2
Citibank Credit Card Master Trust (Master Trust)
Funding, Liquidity Facilities and Subordinated Interests
Weighted average maturity of term notes	3 years 1 month 6 days	3 years 9 months 18 days
Term notes issued to third parties	$ 27.9	$ 18.6
Term notes retained by Citigroup affiliates	6.2	4.8
Total Trust liabilities	34.1	23.4
Citibank OMNI Master Trust (Omni Trust)
Funding, Liquidity Facilities and Subordinated Interests
Weighted average maturity of term notes	8 months 12 days	1 year 8 months 12 days
Term notes issued to third parties	4.4	4.4
Term notes retained by Citigroup affiliates	1.9	7.1
Total Trust liabilities	$ 6.3	$ 11.5