CONSOLIDATED BALANCE SHEET - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks (including segregated cash and other deposits)	$ 20,940	$ 23,043
Deposits with banks	165,142	137,451
Federal funds sold and securities borrowed or purchased under agreements to resell (including $142,831 and $133,204 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	234,065	236,813
Brokerage receivables	40,487	28,887
Trading account assets (including $98,974 and $80,986 pledged to creditors at June 30, 2017 and December 31, 2016, respectively)	259,606	243,925
Investments:
Available for sale (including $8,512 and $8,239 pledged to creditors as of June 30, 2017 and December 31, 2016, respectively)	293,629	299,424
Held to maturity (including $311 and $843 pledged to creditors as of June 30, 2017 and December 31, 2016, respectively)	50,175	45,667
Non-marketable equity securities (including $1,384 and $1,774 at fair value as of June 30, 2017 and December 31, 2016, respectively)	7,906	8,213
Total investments	351,710	353,304
Loans:
Loans, net of unearned income	644,695	624,369
Allowance for loan losses	(12,025)	(12,060)
Total loans, net	632,670	612,309
Goodwill	22,349	21,659
Intangible assets (other than MSRs)	4,887	5,114
Mortgage servicing rights (MSRs)	560	1,564
Other assets (including $18,993 and $15,729 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	131,647	128,008
Total assets	1,864,063	1,792,077
Liabilities
Non-interest-bearing deposits in U.S. offices	126,253	136,698
Interest-bearing deposits in U.S. offices (including $334 and $434 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	311,361	300,972
Non-interest-bearing deposits in offices outside the U.S.	83,046	77,616
Interest-bearing deposits in offices outside the U.S. (including $1,006 and $778 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	438,083	414,120
Total deposits	958,743	929,406
Federal funds purchased and securities loaned or sold under agreements to repurchase (including $44,881 and $33,663 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	154,780	141,821
Brokerage payables	62,947	57,152
Trading account liabilities	136,745	139,045
Short-term borrowings (including $4,833 and $2,700 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	36,519	30,701
Long-term debt (including $29,001 and $26,254 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	225,179	206,178
Other liabilities (including $14,335 and $10,796 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	58,043	61,631
Total liabilities	1,632,956	1,565,934
Stockholders’ equity
Preferred stock ($1.00 par value; authorized shares: 30 million), issued shares: 770,120 as of June 30, 2017 and as of 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 June 30, 2017 and December 31, 2016	31	31
Additional paid-in capital	107,798	108,042
Retained earnings	152,178	146,477
Treasury stock, at cost: June 30, 2017—374,967,178 shares and December 31, 2016—327,090,192 shares	(19,342)	(16,302)
Accumulated other comprehensive income (loss) (AOCI)	(29,899)	(32,381)
Total Citigroup stockholders’ equity	230,019	225,120
Noncontrolling interest	1,088	1,023
Total equity	231,107	226,143
Total liabilities and equity	1,864,063	1,792,077
Consumer
Loans:
Loans, net of unearned income	325,261	325,063
Corporate
Loans:
Loans, net of unearned income	319,434	299,306
Consolidated VIEs
Assets
Cash and due from banks (including segregated cash and other deposits)	86	142
Trading account assets (including $98,974 and $80,986 pledged to creditors at June 30, 2017 and December 31, 2016, respectively)	1,236	602
Investments:
Total investments	2,932	3,636
Loans:
Loans, net of unearned income	73,057	73,522
Allowance for loan losses	(1,863)	(1,769)
Total loans, net	71,194	71,753
Other assets (including $18,993 and $15,729 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	154	158
Total assets	75,602	76,291
Liabilities
Short-term borrowings (including $4,833 and $2,700 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	10,317	10,697
Long-term debt (including $29,001 and $26,254 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	28,265	23,919
Other liabilities (including $14,335 and $10,796 as of June 30, 2017 and December 31, 2016, respectively, at fair value)	456	1,275
Total liabilities	39,038	35,891
Consolidated VIEs | Consumer
Loans:
Loans, net of unearned income	53,816	53,401
Consolidated VIEs | Corporate
Loans:
Loans, net of unearned income	$ 19,241	$ 20,121