CONSOLIDATED BALANCE SHEET - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 23,775	$ 23,043
Deposits with banks	156,741	137,451
Federal funds sold and securities borrowed or purchased under agreements to resell (including $132,949 and $133,204 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	232,478	236,813
Brokerage receivables	38,384	28,887
Trading account assets (including $99,460 and $80,986 pledged to creditors at December 31, 2017 and December 31, 2016, respectively)	251,556	243,925
Investments:
Available for sale (including $9,493 and $8,239 pledged to creditors as of December 31, 2017 and December 31, 2016, respectively)	290,914	299,424
Held to maturity (including $435 and $843 pledged to creditors as of December 31, 2017 and December 31, 2016, respectively)	53,320	45,667
Non-marketable equity securities (including $1,206 and $1,774 at fair value as of December 31, 2017 and December 31, 2016, respectively)	8,056	8,213
Total investments	352,290	353,304
Loans:
Loans, net of unearned income	667,034	624,369
Allowance for loan losses	(12,355)	(12,060)
Total loans, net	654,679	612,309
Goodwill	22,256	21,659
Intangible assets (other than MSRs)	4,588	5,114
Mortgage servicing rights (MSRs)	558	1,564
Other assets	105,160	128,008
Total assets	1,842,465	1,792,077
Liabilities
Non-interest-bearing deposits in U.S. offices	126,880	136,698
Interest-bearing deposits in U.S. offices (including $303 and $434 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	318,613	300,972
Non-interest-bearing deposits in offices outside the U.S.	87,440	77,616
Interest-bearing deposits in offices outside the U.S. (including $1,162 and $778 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	426,889	414,120
Total deposits	959,822	929,406
Federal funds purchased and securities loaned or sold under agreements to repurchase (including $40,638 and $33,663 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	156,277	141,821
Brokerage payables	61,342	57,152
Trading account liabilities	124,047	139,045
Short-term borrowings (including $4,627 and $2,700 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	44,452	30,701
Long-term debt (including $31,392 and $26,254 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	236,709	206,178
Other liabilities (including $15,084 and $10,796 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	58,144	61,631
Total liabilities	1,640,793	1,565,934
Stockholders’ equity
Preferred stock ($1.00 par value; authorized shares: 30 million), issued shares: 770,120 as of December 31, 2017 and December 31, 2016, at aggregate liquidation value	19,253	19,253
Common stock ($0.01 par value; authorized shares: 6 billion), issued shares: 3,099,523,273 and 3,099,482,042 as of December 31, 2017 and December 31, 2016, respectively	31	31
Additional paid-in capital	108,008	108,042
Retained earnings	138,425	146,477
Treasury stock, at cost: December 31, 2017—529,614,728 shares and December 31, 2016—327,090,192 shares	(30,309)	(16,302)
Accumulated other comprehensive income (loss)	(34,668)	(32,381)
Total Citigroup stockholders’ equity	200,740	225,120
Noncontrolling interest	932	1,023
Total equity	201,672	226,143
Total liabilities and equity	1,842,465	1,792,077
Consumer
Loans:
Loans, net of unearned income	333,656	325,063
Corporate
Loans:
Loans, net of unearned income	333,378	299,306
Consolidated VIEs
Assets
Cash and due from banks	52	142
Trading account assets (including $99,460 and $80,986 pledged to creditors at December 31, 2017 and December 31, 2016, respectively)	1,129	602
Investments:
Total investments	2,498	3,636
Loans:
Loans, net of unearned income	74,491	73,522
Allowance for loan losses	(1,930)	(1,769)
Total loans, net	72,561	71,753
Other assets	154	158
Total assets	76,394	76,291
Liabilities
Short-term borrowings (including $4,627 and $2,700 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	10,079	10,697
Long-term debt (including $31,392 and $26,254 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	30,492	23,919
Other liabilities (including $15,084 and $10,796 as of December 31, 2017 and December 31, 2016, respectively, at fair value)	611	1,275
Total liabilities	41,182	35,891
Consolidated VIEs | Consumer
Loans:
Loans, net of unearned income	54,656	53,401
Consolidated VIEs | Corporate
Loans:
Loans, net of unearned income	$ 19,835	$ 20,121