CONDENSED CONSOLIDATING FINANCIAL STATEMENTS - Condensed Consolidating Statements of Income and Comprehensive Income (Details) - USD ($) $ in Millions |
3 Months Ended |
12 Months Ended |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Revenues |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividends from subsidiaries |
|
|
|
|
|
|
|
|
|
$ 0
|
|
$ 0
|
|
$ 0
|
|
Interest revenue |
[1] |
|
|
|
|
|
|
|
|
58,551
|
|
61,683
|
|
62,970
|
|
Interest revenue—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest expense |
[1] |
|
|
|
|
|
|
|
|
11,921
|
|
13,690
|
|
16,177
|
|
Interest expense—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Net interest revenue |
[1] |
|
|
|
|
|
|
|
|
46,630
|
|
47,993
|
|
46,793
|
|
Commissions and fees |
|
|
|
|
|
|
|
|
|
11,848
|
[1] |
13,032
|
|
12,941
|
|
Commissions and fees—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Principal transactions |
[1] |
|
|
|
|
|
|
|
|
6,008
|
|
6,698
|
|
7,302
|
|
Principal transactions—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other income |
|
|
|
|
|
|
|
|
|
11,868
|
|
9,496
|
|
9,688
|
|
Other income—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Total non-interest revenues |
[1] |
|
|
|
|
|
|
|
|
29,724
|
|
29,226
|
|
29,931
|
|
Total revenues, net of interest expense |
|
$ 18,456
|
$ 18,692
|
$ 19,470
|
$ 19,736
|
$ 17,899
|
$ 19,689
|
$ 19,425
|
$ 20,206
|
76,354
|
[1] |
77,219
|
[1] |
76,724
|
[1] |
Provisions for credit losses and for benefits and claims |
|
2,514
|
1,836
|
1,648
|
1,915
|
2,013
|
1,750
|
1,730
|
1,974
|
7,913
|
|
7,467
|
|
8,514
|
|
Operating expenses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Compensation and benefits |
[1] |
|
|
|
|
|
|
|
|
21,769
|
|
23,959
|
|
23,967
|
|
Compensation and benefits—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other operating |
|
|
|
|
|
|
|
|
|
21,846
|
|
31,092
|
|
24,441
|
|
Other operating—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Total operating expenses |
|
11,134
|
10,669
|
10,928
|
10,884
|
14,426
|
12,955
|
15,521
|
12,149
|
43,615
|
[1] |
55,051
|
[1] |
48,408
|
[1] |
Income (loss) before income taxes and equity in undistributed income of subsidiaries |
|
4,808
|
6,187
|
6,894
|
6,937
|
1,460
|
4,984
|
2,174
|
6,083
|
24,826
|
|
14,701
|
|
19,802
|
|
Provision for income taxes |
|
1,403
|
1,881
|
2,036
|
2,120
|
1,077
|
2,068
|
1,921
|
2,131
|
7,440
|
|
7,197
|
|
6,186
|
|
Equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Income from continuing operations |
|
3,405
|
4,306
|
4,858
|
4,817
|
383
|
2,916
|
253
|
3,952
|
17,386
|
|
7,504
|
|
13,616
|
|
Income (loss) from discontinued operations, net of taxes |
|
(45)
|
(10)
|
6
|
(5)
|
(1)
|
(16)
|
(22)
|
37
|
(54)
|
|
(2)
|
|
270
|
|
Net income before attribution of noncontrolling interests |
|
3,360
|
4,296
|
4,864
|
4,812
|
382
|
2,900
|
231
|
3,989
|
17,332
|
|
7,502
|
|
13,886
|
|
Noncontrolling interests |
|
25
|
5
|
18
|
42
|
38
|
59
|
50
|
45
|
90
|
|
192
|
|
227
|
|
Citigroup’s net income |
|
$ 3,335
|
$ 4,291
|
$ 4,846
|
$ 4,770
|
$ 344
|
$ 2,841
|
$ 181
|
$ 3,944
|
17,242
|
|
7,310
|
|
13,659
|
|
Comprehensive income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive income (loss) |
|
|
|
|
|
|
|
|
|
(6,128)
|
|
(4,083)
|
|
(2,237)
|
|
Citigroup’s comprehensive income |
|
|
|
|
|
|
|
|
|
11,114
|
|
3,227
|
|
11,422
|
|
Other Citigroup Inc. subsidiaries and eliminations |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Revenues |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividends from subsidiaries |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest revenue |
|
|
|
|
|
|
|
|
|
54,153
|
|
57,461
|
|
58,481
|
|
Interest revenue—intercompany |
|
|
|
|
|
|
|
|
|
(3,152)
|
|
(3,253)
|
|
(3,379)
|
|
Interest expense |
|
|
|
|
|
|
|
|
|
6,361
|
|
7,625
|
|
9,115
|
|
Interest expense—intercompany |
|
|
|
|
|
|
|
|
|
(820)
|
|
(640)
|
|
(989)
|
|
Net interest revenue |
|
|
|
|
|
|
|
|
|
45,460
|
|
47,223
|
|
46,976
|
|
Commissions and fees |
|
|
|
|
|
|
|
|
|
6,994
|
|
7,847
|
|
8,070
|
|
Commissions and fees—intercompany |
|
|
|
|
|
|
|
|
|
(214)
|
|
(95)
|
|
(27)
|
|
Principal transactions |
|
|
|
|
|
|
|
|
|
(5,369)
|
|
7,800
|
|
7,170
|
|
Principal transactions—intercompany |
|
|
|
|
|
|
|
|
|
10,442
|
|
(3,150)
|
|
(1,104)
|
|
Other income |
|
|
|
|
|
|
|
|
|
8,148
|
|
8,034
|
|
5,347
|
|
Other income—intercompany |
|
|
|
|
|
|
|
|
|
1,975
|
|
(1,075)
|
|
2,059
|
|
Total non-interest revenues |
|
|
|
|
|
|
|
|
|
21,976
|
|
19,361
|
|
21,515
|
|
Total revenues, net of interest expense |
|
|
|
|
|
|
|
|
|
67,436
|
|
66,584
|
|
68,491
|
|
Provisions for credit losses and for benefits and claims |
|
|
|
|
|
|
|
|
|
7,913
|
|
7,467
|
|
8,496
|
|
Operating expenses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Compensation and benefits |
|
|
|
|
|
|
|
|
|
16,824
|
|
18,645
|
|
18,662
|
|
Compensation and benefits—intercompany |
|
|
|
|
|
|
|
|
|
(59)
|
|
(38)
|
|
(52)
|
|
Other operating |
|
|
|
|
|
|
|
|
|
19,627
|
|
23,438
|
|
20,506
|
|
Other operating—intercompany |
|
|
|
|
|
|
|
|
|
(1,411)
|
|
(1,863)
|
|
(3,045)
|
|
Total operating expenses |
|
|
|
|
|
|
|
|
|
34,981
|
|
40,182
|
|
36,071
|
|
Income (loss) before income taxes and equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
24,542
|
|
18,935
|
|
23,924
|
|
Provision for income taxes |
|
|
|
|
|
|
|
|
|
8,243
|
|
$ 7,240
|
|
8,073
|
|
Equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
0
|
|
|
|
0
|
|
Income from continuing operations |
|
|
|
|
|
|
|
|
|
16,299
|
|
$ 11,695
|
|
15,851
|
|
Income (loss) from discontinued operations, net of taxes |
|
|
|
|
|
|
|
|
|
(54)
|
|
(2)
|
|
270
|
|
Net income before attribution of noncontrolling interests |
|
|
|
|
|
|
|
|
|
16,245
|
|
11,693
|
|
16,121
|
|
Noncontrolling interests |
|
|
|
|
|
|
|
|
|
81
|
|
184
|
|
202
|
|
Citigroup’s net income |
|
|
|
|
|
|
|
|
|
16,164
|
|
11,509
|
|
15,919
|
|
Comprehensive income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive income (loss) |
|
|
|
|
|
|
|
|
|
(6,367)
|
|
(4,760)
|
|
(3,138)
|
|
Citigroup’s comprehensive income |
|
|
|
|
|
|
|
|
|
9,797
|
|
6,749
|
|
12,781
|
|
Consolidating adjustments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Revenues |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividends from subsidiaries |
|
|
|
|
|
|
|
|
|
(13,500)
|
|
(8,900)
|
|
(13,044)
|
|
Interest revenue |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest revenue—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest expense |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest expense—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Net interest revenue |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Commissions and fees |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Commissions and fees—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Principal transactions |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Principal transactions—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other income |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other income—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Total non-interest revenues |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Total revenues, net of interest expense |
|
|
|
|
|
|
|
|
|
(13,500)
|
|
(8,900)
|
|
(13,044)
|
|
Provisions for credit losses and for benefits and claims |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Operating expenses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Compensation and benefits |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Compensation and benefits—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other operating |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other operating—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Total operating expenses |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Income (loss) before income taxes and equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
(13,500)
|
|
(8,900)
|
|
(13,044)
|
|
Provision for income taxes |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
(4,601)
|
|
(816)
|
|
(2,014)
|
|
Income from continuing operations |
|
|
|
|
|
|
|
|
|
(18,101)
|
|
(9,716)
|
|
(15,058)
|
|
Income (loss) from discontinued operations, net of taxes |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Net income before attribution of noncontrolling interests |
|
|
|
|
|
|
|
|
|
(18,101)
|
|
(9,716)
|
|
(15,058)
|
|
Noncontrolling interests |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Citigroup’s net income |
|
|
|
|
|
|
|
|
|
(18,101)
|
|
(9,716)
|
|
(15,058)
|
|
Comprehensive income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive income (loss) |
|
|
|
|
|
|
|
|
|
6,492
|
|
4,566
|
|
3,277
|
|
Citigroup’s comprehensive income |
|
|
|
|
|
|
|
|
|
(11,609)
|
|
(5,150)
|
|
(11,781)
|
|
Citigroup Inc. | Reportable legal entities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Revenues |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividends from subsidiaries |
|
|
|
|
|
|
|
|
|
13,500
|
|
8,900
|
|
13,044
|
|
Interest revenue |
|
|
|
|
|
|
|
|
|
9
|
|
12
|
|
14
|
|
Interest revenue—intercompany |
|
|
|
|
|
|
|
|
|
2,880
|
|
3,109
|
|
3,220
|
|
Interest expense |
|
|
|
|
|
|
|
|
|
4,563
|
|
5,055
|
|
5,995
|
|
Interest expense—intercompany |
|
|
|
|
|
|
|
|
|
(475)
|
|
(618)
|
|
(436)
|
|
Net interest revenue |
|
|
|
|
|
|
|
|
|
(1,199)
|
|
(1,316)
|
|
(2,325)
|
|
Commissions and fees |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Commissions and fees—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Principal transactions |
|
|
|
|
|
|
|
|
|
1,012
|
|
13
|
|
(257)
|
|
Principal transactions—intercompany |
|
|
|
|
|
|
|
|
|
(1,733)
|
|
(672)
|
|
(387)
|
|
Other income |
|
|
|
|
|
|
|
|
|
3,294
|
|
1,037
|
|
3,770
|
|
Other income—intercompany |
|
|
|
|
|
|
|
|
|
(3,054)
|
|
(131)
|
|
(2,987)
|
|
Total non-interest revenues |
|
|
|
|
|
|
|
|
|
(481)
|
|
247
|
|
139
|
|
Total revenues, net of interest expense |
|
|
|
|
|
|
|
|
|
11,820
|
|
7,831
|
|
10,858
|
|
Provisions for credit losses and for benefits and claims |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Operating expenses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Compensation and benefits |
|
|
|
|
|
|
|
|
|
(58)
|
|
158
|
|
136
|
|
Compensation and benefits—intercompany |
|
|
|
|
|
|
|
|
|
59
|
|
38
|
|
52
|
|
Other operating |
|
|
|
|
|
|
|
|
|
271
|
|
1,572
|
|
474
|
|
Other operating—intercompany |
|
|
|
|
|
|
|
|
|
247
|
|
212
|
|
189
|
|
Total operating expenses |
|
|
|
|
|
|
|
|
|
519
|
|
1,980
|
|
851
|
|
Income (loss) before income taxes and equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
11,301
|
|
5,851
|
|
10,007
|
|
Provision for income taxes |
|
|
|
|
|
|
|
|
|
(1,340)
|
|
(643)
|
|
(1,638)
|
|
Equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
4,601
|
|
816
|
|
2,014
|
|
Income from continuing operations |
|
|
|
|
|
|
|
|
|
17,242
|
|
7,310
|
|
13,659
|
|
Income (loss) from discontinued operations, net of taxes |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Net income before attribution of noncontrolling interests |
|
|
|
|
|
|
|
|
|
17,242
|
|
7,310
|
|
13,659
|
|
Noncontrolling interests |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Citigroup’s net income |
|
|
|
|
|
|
|
|
|
17,242
|
|
7,310
|
|
13,659
|
|
Comprehensive income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive income (loss) |
|
|
|
|
|
|
|
|
|
(6,128)
|
|
(4,083)
|
|
(2,237)
|
|
Citigroup’s comprehensive income |
|
|
|
|
|
|
|
|
|
11,114
|
|
3,227
|
|
11,422
|
|
CGMHI | Reportable legal entities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Revenues |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dividends from subsidiaries |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Interest revenue |
|
|
|
|
|
|
|
|
|
4,389
|
|
4,210
|
|
4,475
|
|
Interest revenue—intercompany |
|
|
|
|
|
|
|
|
|
272
|
|
144
|
|
159
|
|
Interest expense |
|
|
|
|
|
|
|
|
|
997
|
|
1,010
|
|
1,067
|
|
Interest expense—intercompany |
|
|
|
|
|
|
|
|
|
1,295
|
|
1,258
|
|
1,425
|
|
Net interest revenue |
|
|
|
|
|
|
|
|
|
2,369
|
|
2,086
|
|
2,142
|
|
Commissions and fees |
|
|
|
|
|
|
|
|
|
4,854
|
|
5,185
|
|
4,871
|
|
Commissions and fees—intercompany |
|
|
|
|
|
|
|
|
|
214
|
|
95
|
|
27
|
|
Principal transactions |
|
|
|
|
|
|
|
|
|
10,365
|
|
(1,115)
|
|
389
|
|
Principal transactions—intercompany |
|
|
|
|
|
|
|
|
|
(8,709)
|
|
3,822
|
|
1,491
|
|
Other income |
|
|
|
|
|
|
|
|
|
426
|
|
425
|
|
571
|
|
Other income—intercompany |
|
|
|
|
|
|
|
|
|
1,079
|
|
1,206
|
|
928
|
|
Total non-interest revenues |
|
|
|
|
|
|
|
|
|
8,229
|
|
9,618
|
|
8,277
|
|
Total revenues, net of interest expense |
|
|
|
|
|
|
|
|
|
10,598
|
|
11,704
|
|
10,419
|
|
Provisions for credit losses and for benefits and claims |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
18
|
|
Operating expenses |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Compensation and benefits |
|
|
|
|
|
|
|
|
|
5,003
|
|
5,156
|
|
5,169
|
|
Compensation and benefits—intercompany |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Other operating |
|
|
|
|
|
|
|
|
|
1,948
|
|
6,082
|
|
3,461
|
|
Other operating—intercompany |
|
|
|
|
|
|
|
|
|
1,164
|
|
1,651
|
|
2,856
|
|
Total operating expenses |
|
|
|
|
|
|
|
|
|
8,115
|
|
12,889
|
|
11,486
|
|
Income (loss) before income taxes and equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
2,483
|
|
(1,185)
|
|
(1,085)
|
|
Provision for income taxes |
|
|
|
|
|
|
|
|
|
537
|
|
600
|
|
(249)
|
|
Equity in undistributed income of subsidiaries |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Income from continuing operations |
|
|
|
|
|
|
|
|
|
1,946
|
|
(1,785)
|
|
(836)
|
|
Income (loss) from discontinued operations, net of taxes |
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
0
|
|
Net income before attribution of noncontrolling interests |
|
|
|
|
|
|
|
|
|
1,946
|
|
(1,785)
|
|
(836)
|
|
Noncontrolling interests |
|
|
|
|
|
|
|
|
|
9
|
|
8
|
|
25
|
|
Citigroup’s net income |
|
|
|
|
|
|
|
|
|
1,937
|
|
(1,793)
|
|
(861)
|
|
Comprehensive income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive income (loss) |
|
|
|
|
|
|
|
|
|
(125)
|
|
194
|
|
(139)
|
|
Citigroup’s comprehensive income |
|
|
|
|
|
|
|
|
|
$ 1,812
|
|
$ (1,599)
|
|
$ (1,000)
|
|
|
|