CONSOLIDATED BALANCE SHEET (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 21,880	$ 32,108
Deposits with banks	133,896	128,089
Federal funds sold and securities borrowed or purchased under agreements to resell (including $135,894 and $144,191 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	239,015	242,570
Brokerage receivables	35,637	28,419
Trading account assets (including $105,710 and $106,217 pledged to creditors at March 31, 2015 and December 31, 2014, respectively)	302,983	296,786
Investments:
Available for sale (including $12,595 and $13,808 pledged to creditors as of March 31, 2015 and December 31, 2014, respectively)	295,239	300,143
Held to maturity (including $2,489 and $2,974 pledged to creditors as of March 31, 2015 and December 31, 2014, respectively)	23,254	23,921
Non-marketable equity securities (including $2,570 and $2,758 at fair value as of March 31, 2015 and December 31, 2014 respectively)	8,322	9,379
Investments	326,815	333,443
Loans:
Loans, net of unearned income	621,054	644,635
Allowance for loan losses	(14,598)	(15,994)
Total loans, net	606,456	628,641
Goodwill	23,150	23,592
Intangible assets (other than MSRs)	4,244	4,566
Mortgage servicing rights (MSRs)	1,685	1,845
Other assets (including $8,936 and $7,762 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	136,040	122,122
Total assets	1,831,801	1,842,181
Liabilities
Non-interest-bearing deposits in U.S. offices	136,568	128,958
Interest-bearing deposits in U.S. offices (including $976 and $994 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	275,423	284,978
Non-interest-bearing deposits in offices outside the U.S.	71,653	70,925
Interest-bearing deposits in offices outside the U.S. (including $674 and $690 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	416,003	414,471
Total deposits	899,647	899,332
Federal funds purchased and securities loaned or sold under agreements to repurchase (including $34,225 and $36,725 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	175,371	173,438
Brokerage payables	58,252	52,180
Trading account liabilities	142,438	139,036
Short-term borrowings (including $926 and $1,496 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	39,405	58,335
Long-term debt (including $25,409 and $26,180 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	210,522	223,080
Other liabilities (including $2,024 and $1,776 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	90,143	85,084
Total liabilities	1,615,778	1,630,485
Stockholders’ equity
Preferred stock ($1.00 par value; authorized shares: 30 million), issued shares: 478,720 as of March 31, 2015 and 418,720 as of December 31, 2014, at aggregate liquidation value	11,968	10,468
Common stock ($0.01 par value; authorized shares: 6 billion), issued shares: 3,099,470,853 as of March 31, 2015 and 3,082,037,568 as of December 31, 2014	31	31
Additional paid-in capital	108,124	107,979
Retained earnings	122,463	117,852
Treasury stock, at cost: March 31, 2015—65,331,175 shares and December 31, 2014—58,119,993 shares	(3,275)	(2,929)
Accumulated other comprehensive income (loss)	(24,691)	(23,216)
Total Citigroup stockholders’ equity	214,620	210,185
Noncontrolling interest	1,403	1,511
Total equity	216,023	211,696
Total liabilities and equity	1,831,801	1,842,181
Consumer
Loans:
Loans, net of unearned income	341,706	369,970
Corporate
Loans:
Loans, net of unearned income	279,348	274,665
Consolidated VIEs
Assets
Cash and due from banks	111	300
Trading account assets (including $105,710 and $106,217 pledged to creditors at March 31, 2015 and December 31, 2014, respectively)	626	671
Investments:
Investments	7,650	8,014
Loans:
Loans, net of unearned income	87,932	95,979
Allowance for loan losses	(2,533)	(2,793)
Total loans, net	85,399	93,186
Other assets (including $8,936 and $7,762 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	4,758	619
Total assets	98,544	102,790
Liabilities
Short-term borrowings (including $926 and $1,496 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	14,840	20,254
Long-term debt (including $25,409 and $26,180 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	35,251	40,078
Other liabilities (including $2,024 and $1,776 as of March 31, 2015 and December 31, 2014, respectively, at fair value)	3,983	901
Total liabilities	54,074	61,233
Consolidated VIEs | Consumer
Loans:
Loans, net of unearned income	58,790	66,383
Consolidated VIEs | Corporate
Loans:
Loans, net of unearned income	$ 29,142	$ 29,596