FAIR VALUE MEASUREMENT - Level 3 Roll Forward (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Trading account assets and liabilities
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	$ (2,661)	$ (991)
Net realized/unrealized gains (losses) included in earnings	(832)	(46)
Transfers into Level 3	148	(524)
Transfers out of Level 3	181	81
Purchases	186	170
Sales	(163)	(143)
Settlements	287	(307)
Balance at end of period, asset (liability), net	(2,854)	(1,760)
Unrealized gains (losses) still held	(448)	(548)
Trading account assets and liabilities | Interest rate contracts
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	(211)	839
Net realized/unrealized gains (losses) included in earnings	(70)	(348)
Transfers into Level 3	(134)	36
Transfers out of Level 3	7	9
Purchases	6	18
Sales	(3)	(46)
Settlements	71	(275)
Balance at end of period, asset (liability), net	(334)	233
Unrealized gains (losses) still held	(282)	(367)
Trading account assets and liabilities | Foreign exchange contracts
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	778	695
Net realized/unrealized gains (losses) included in earnings	(301)	138
Transfers into Level 3	41	(11)
Transfers out of Level 3	4	19
Purchases	91	1
Sales	(95)	0
Settlements	128	(13)
Balance at end of period, asset (liability), net	646	829
Unrealized gains (losses) still held	174	211
Trading account assets and liabilities | Equity contracts
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	(863)	(858)
Net realized/unrealized gains (losses) included in earnings	(29)	152
Transfers into Level 3	(23)	(518)
Transfers out of Level 3	101	52
Purchases	89	150
Sales	(65)	(94)
Settlements	16	(120)
Balance at end of period, asset (liability), net	(774)	(1,236)
Unrealized gains (losses) still held	110	(225)
Trading account assets and liabilities | Commodity contracts
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	(1,622)	(1,393)
Net realized/unrealized gains (losses) included in earnings	(334)	75
Transfers into Level 3	182	30
Transfers out of Level 3	16	31
Purchases	0	0
Sales	0	0
Settlements	29	(72)
Balance at end of period, asset (liability), net	(1,729)	(1,329)
Unrealized gains (losses) still held	(263)	67
Trading account assets and liabilities | Credit derivatives
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset (liability), net	(743)	(274)
Net realized/unrealized gains (losses) included in earnings	(98)	(63)
Transfers into Level 3	82	(61)
Transfers out of Level 3	53	(30)
Purchases	0	1
Sales	0	(3)
Settlements	43	173
Balance at end of period, asset (liability), net	(663)	(257)
Unrealized gains (losses) still held	(187)	(234)
Interest-bearing deposits
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	486	890
Net realized/unrealized gains (losses) included in earnings, liabilities	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	0	(70)
Transfers into Level 3, liabilities	0	0
Transfers out of Level 3, liabilities	0	0
Purchases, liability	0	0
Issuance, liability	0	0
Sales, liability	0	0
Settlements, liability	(21)	(25)
Balance at end of period, liability	465	935
Unrealized gains (losses) still held, liabilities	2	(19)
Federal funds purchased and securities loaned or sold under agreements to repurchase
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	1,043	902
Net realized/unrealized gains (losses) included in earnings, liabilities	(52)	(7)
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	0	0
Transfers into Level 3, liabilities	0	0
Transfers out of Level 3, liabilities	0	0
Purchases, liability	0	31
Issuance, liability	0	0
Sales, liability	1	0
Settlements, liability	(36)	0
Balance at end of period, liability	1,060	940
Unrealized gains (losses) still held, liabilities	(11)	(9)
Trading account liabilities | Securities sold, not yet purchased
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	424	590
Net realized/unrealized gains (losses) included in earnings, liabilities	(10)	10
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	0	0
Transfers into Level 3, liabilities	92	18
Transfers out of Level 3, liabilities	(43)	(29)
Purchases, liability	0	0
Issuance, liability	0	0
Sales, liability	70	150
Settlements, liability	(330)	(237)
Balance at end of period, liability	223	482
Unrealized gains (losses) still held, liabilities	(29)	(13)
Short-term borrowings
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	344	29
Net realized/unrealized gains (losses) included in earnings, liabilities	(7)	(17)
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	0	0
Transfers into Level 3, liabilities	1	0
Transfers out of Level 3, liabilities	(12)	0
Purchases, liability	0	0
Issuance, liability	16	1
Sales, liability	0	0
Settlements, liability	(236)	(20)
Balance at end of period, liability	120	27
Unrealized gains (losses) still held, liabilities	(21)	0
Long-term debt
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	7,290	7,621
Net realized/unrealized gains (losses) included in earnings, liabilities	286	(284)
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	0	25
Transfers into Level 3, liabilities	712	959
Transfers out of Level 3, liabilities	(947)	(854)
Purchases, liability	0	0
Issuance, liability	949	940
Sales, liability	0	0
Settlements, liability	(522)	(279)
Balance at end of period, liability	7,196	8,646
Unrealized gains (losses) still held, liabilities	(193)	(118)
Other financial liabilities
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, liability	7	10
Net realized/unrealized gains (losses) included in earnings, liabilities	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities	(3)	0
Transfers into Level 3, liabilities	0	0
Transfers out of Level 3, liabilities	0	0
Purchases, liability	(1)	0
Issuance, liability	0	1
Sales, liability	0	(3)
Settlements, liability	(1)	(5)
Balance at end of period, liability	8	3
Unrealized gains (losses) still held, liabilities	(1)	(1)
Federal funds sold and securities borrowed or purchased under agreements to resell
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	3,398	3,566
Net realized/unrealized gains (losses) included in principal transactions	(40)	(1)
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	0	51
Transfers out of Level 3, assets	(100)	0
Purchases, assets	764	0
Issuance, assets	0	0
Sales, assets	0	0
Settlements, assets	0	(165)
Balance at end of period, asset	4,022	3,451
Unrealized gains (losses) still held, assets	71	(1)
Trading non-derivative assets
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	15,357	15,260
Net realized/unrealized gains (losses) included in principal transactions	125	387
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	880	1,178
Transfers out of Level 3, assets	(1,338)	(1,540)
Purchases, assets	3,854	4,440
Issuance, assets	13	3
Sales, assets	(3,614)	(5,432)
Settlements, assets	(57)	(86)
Balance at end of period, asset	15,220	14,210
Unrealized gains (losses) still held, assets	98	476
Trading non-derivative assets | U.S. government-sponsored agency guaranteed
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	1,085	1,094
Net realized/unrealized gains (losses) included in principal transactions	3	81
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	294	179
Transfers out of Level 3, assets	(510)	(385)
Purchases, assets	167	154
Issuance, assets	0	3
Sales, assets	(221)	(321)
Settlements, assets	0	(17)
Balance at end of period, asset	818	788
Unrealized gains (losses) still held, assets	(2)	10
Trading non-derivative assets | Mortgage-backed securities - Residential
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	2,680	2,854
Net realized/unrealized gains (losses) included in principal transactions	77	157
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	45	74
Transfers out of Level 3, assets	(216)	(153)
Purchases, assets	498	976
Issuance, assets	0	0
Sales, assets	(954)	(1,164)
Settlements, assets	0	0
Balance at end of period, asset	2,130	2,744
Unrealized gains (losses) still held, assets	(106)	41
Trading non-derivative assets | Mortgage-backed securities - Commercial
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	440	256
Net realized/unrealized gains (losses) included in principal transactions	15	5
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	88	35
Transfers out of Level 3, assets	(13)	(24)
Purchases, assets	320	32
Issuance, assets	0	0
Sales, assets	(251)	(63)
Settlements, assets	0	0
Balance at end of period, asset	599	241
Unrealized gains (losses) still held, assets	(4)	5
Trading non-derivative assets | Mortgage-backed securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	4,205	4,204
Net realized/unrealized gains (losses) included in principal transactions	95	243
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	427	288
Transfers out of Level 3, assets	(739)	(562)
Purchases, assets	985	1,162
Issuance, assets	0	3
Sales, assets	(1,426)	(1,548)
Settlements, assets	0	(17)
Balance at end of period, asset	3,547	3,773
Unrealized gains (losses) still held, assets	(112)	56
Trading non-derivative assets | U.S. Treasury and federal agency securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	0	0
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	0	0
Transfers out of Level 3, assets	0	0
Purchases, assets	0	0
Issuance, assets	0	0
Sales, assets	0	0
Settlements, assets	0	0
Balance at end of period, asset	0	0
Unrealized gains (losses) still held, assets	0	0
Trading non-derivative assets | State and municipal securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	241	222
Net realized/unrealized gains (losses) included in principal transactions	(8)	2
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	14	11
Transfers out of Level 3, assets	(7)	(104)
Purchases, assets	9	9
Issuance, assets	0	0
Sales, assets	(2)	(19)
Settlements, assets	0	0
Balance at end of period, asset	247	121
Unrealized gains (losses) still held, assets	(7)	3
Trading non-derivative assets | Foreign government
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	206	416
Net realized/unrealized gains (losses) included in principal transactions	(3)	(6)
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	27	49
Transfers out of Level 3, assets	(92)	(85)
Purchases, assets	66	138
Issuance, assets	0	0
Sales, assets	(40)	(139)
Settlements, assets	(49)	0
Balance at end of period, asset	115	373
Unrealized gains (losses) still held, assets	1	(5)
Trading non-derivative assets | Corporate
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	820	1,835
Net realized/unrealized gains (losses) included in principal transactions	76	27
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	13	187
Transfers out of Level 3, assets	(59)	(145)
Purchases, assets	347	592
Issuance, assets	0	0
Sales, assets	(430)	(828)
Settlements, assets	0	(3)
Balance at end of period, asset	767	1,665
Unrealized gains (losses) still held, assets	32	(30)
Trading non-derivative assets | Equity securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	2,219	1,057
Net realized/unrealized gains (losses) included in principal transactions	(21)	(171)
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	124	35
Transfers out of Level 3, assets	(15)	(5)
Purchases, assets	382	532
Issuance, assets	0	0
Sales, assets	(91)	(63)
Settlements, assets	0	0
Balance at end of period, asset	2,598	1,385
Unrealized gains (losses) still held, assets	5	267
Trading non-derivative assets | Asset-backed securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	3,294	4,342
Net realized/unrealized gains (losses) included in principal transactions	127	269
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	65	33
Transfers out of Level 3, assets	(34)	(175)
Purchases, assets	1,063	943
Issuance, assets	0	0
Sales, assets	(962)	(1,971)
Settlements, assets	0	0
Balance at end of period, asset	3,553	3,441
Unrealized gains (losses) still held, assets	194	164
Trading non-derivative assets | Other debt securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	4,372	3,184
Net realized/unrealized gains (losses) included in principal transactions	(141)	23
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	210	575
Transfers out of Level 3, assets	(392)	(464)
Purchases, assets	1,002	1,064
Issuance, assets	13	0
Sales, assets	(663)	(864)
Settlements, assets	(8)	(66)
Balance at end of period, asset	4,393	3,452
Unrealized gains (losses) still held, assets	(15)	21
Investments
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	7,338	9,741
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(48)	180
Transfers into Level 3	161	389
Transfers out of Level 3, assets	(312)	(407)
Purchases, assets	441	1,054
Issuance, assets	0	0
Sales, assets	(359)	(549)
Settlements, assets	(407)	(548)
Balance at end of period, asset	6,814	9,860
Unrealized gains (losses) still held, assets	(46)	20
Investments | U.S. government-sponsored agency guaranteed
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	38	187
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(1)	48
Transfers into Level 3	45	24
Transfers out of Level 3, assets	(12)	(37)
Purchases, assets	0	17
Issuance, assets	0	0
Sales, assets	0	(39)
Settlements, assets	0	(1)
Balance at end of period, asset	70	199
Unrealized gains (losses) still held, assets	(2)	0
Investments | Mortgage-backed securities - Residential
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	8	102
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	2	23
Transfers into Level 3	0	13
Transfers out of Level 3, assets	0	0
Purchases, assets	0	17
Issuance, assets	0	0
Sales, assets	0	(125)
Settlements, assets	0	0
Balance at end of period, asset	10	30
Unrealized gains (losses) still held, assets	2	2
Investments | Mortgage-backed securities - Commercial
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	1	0
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	2	1
Transfers out of Level 3, assets	(1)	0
Purchases, assets	0	0
Issuance, assets	0	0
Sales, assets	0	0
Settlements, assets	0	0
Balance at end of period, asset	2	1
Unrealized gains (losses) still held, assets	0	0
Investments | Mortgage-backed securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	47	289
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	1	71
Transfers into Level 3	47	38
Transfers out of Level 3, assets	(13)	(37)
Purchases, assets	0	34
Issuance, assets	0	0
Sales, assets	0	(164)
Settlements, assets	0	(1)
Balance at end of period, asset	82	230
Unrealized gains (losses) still held, assets	0	2
Investments | U.S. Treasury and federal agency securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	6	8
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	0
Transfers into Level 3	0	0
Transfers out of Level 3, assets	0	0
Purchases, assets	0	0
Issuance, assets	0	0
Sales, assets	(1)	(1)
Settlements, assets	0	0
Balance at end of period, asset	5	7
Unrealized gains (losses) still held, assets	0	0
Investments | State and municipal securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	2,180	1,643
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	32	36
Transfers into Level 3	105	254
Transfers out of Level 3, assets	(139)	(285)
Purchases, assets	233	373
Issuance, assets	0	0
Sales, assets	(164)	(118)
Settlements, assets	0	0
Balance at end of period, asset	2,247	1,903
Unrealized gains (losses) still held, assets	13	26
Investments | Foreign government
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	678	344
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	51	2
Transfers into Level 3	0	22
Transfers out of Level 3, assets	(105)	(42)
Purchases, assets	174	49
Issuance, assets	0	0
Sales, assets	(111)	(78)
Settlements, assets	(112)	(23)
Balance at end of period, asset	575	274
Unrealized gains (losses) still held, assets	(22)	(4)
Investments | Corporate
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	672	285
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(26)	(1)
Transfers into Level 3	2	2
Transfers out of Level 3, assets	(41)	(1)
Purchases, assets	14	247
Issuance, assets	0	0
Sales, assets	(4)	(1)
Settlements, assets	(33)	0
Balance at end of period, asset	584	531
Unrealized gains (losses) still held, assets	(20)	(2)
Investments | Equity securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	681	815
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(88)	16
Transfers into Level 3	7	6
Transfers out of Level 3, assets	(3)	0
Purchases, assets	0	1
Issuance, assets	0	0
Sales, assets	(78)	(7)
Settlements, assets	0	0
Balance at end of period, asset	519	831
Unrealized gains (losses) still held, assets	(3)	(4)
Investments | Asset-backed securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	549	1,960
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(40)	8
Transfers into Level 3	0	0
Transfers out of Level 3, assets	(10)	(42)
Purchases, assets	19	48
Issuance, assets	0	0
Sales, assets	(1)	(97)
Settlements, assets	0	0
Balance at end of period, asset	517	1,877
Unrealized gains (losses) still held, assets	(39)	1
Investments | Other debt securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	0	50
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	0	(1)
Transfers into Level 3	0	0
Transfers out of Level 3, assets	0	0
Purchases, assets	0	50
Issuance, assets	0	0
Sales, assets	0	0
Settlements, assets	0	0
Balance at end of period, asset	0	99
Unrealized gains (losses) still held, assets	0	0
Investments | Non-marketable equity securities
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	2,525	4,347
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	22	49
Transfers into Level 3	0	67
Transfers out of Level 3, assets	(1)	0
Purchases, assets	1	252
Issuance, assets	0	0
Sales, assets	0	(83)
Settlements, assets	(262)	(524)
Balance at end of period, asset	2,285	4,108
Unrealized gains (losses) still held, assets	25	1
Loans
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	3,108	4,143
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(54)	(28)
Transfers into Level 3	689	0
Transfers out of Level 3, assets	0	0
Purchases, assets	209	153
Issuance, assets	321	50
Sales, assets	(97)	(79)
Settlements, assets	(270)	(97)
Balance at end of period, asset	3,906	4,142
Unrealized gains (losses) still held, assets	(4)	(108)
Mortgage servicing rights
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	1,845	2,718
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	(77)	(114)
Transfers into Level 3	0	0
Transfers out of Level 3, assets	0	0
Purchases, assets	0	0
Issuance, assets	43	50
Sales, assets	(32)	28
Settlements, assets	(94)	(96)
Balance at end of period, asset	1,685	2,586
Unrealized gains (losses) still held, assets	(77)	(115)
Other financial assets measured on a recurring basis
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance at beginning of period, asset	78	181
Net realized/unrealized gains (losses) included in principal transactions	0	0
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets	6	(2)
Transfers into Level 3	66	0
Transfers out of Level 3, assets	(2)	0
Purchases, assets	3	0
Issuance, assets	60	36
Sales, assets	(5)	(4)
Settlements, assets	(58)	(32)
Balance at end of period, asset	148	179
Unrealized gains (losses) still held, assets	$ (33)	$ (4)