Fair value measurement - Changes in Level 3 Recurring Measurements (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Net derivative receivables:
Beginning balance	$ (746,000,000)	$ (1,855,000,000)	$ (2,061,000,000)	$ 326,000,000
Total realized/unrealized gains/(losses)	(208,000,000)	196,000,000		(603,000,000)
Purchases	212,000,000	796,000,000	1,101,000,000	2,069,000,000
Sales	(331,000,000)	(859,000,000)	(1,176,000,000)	(2,585,000,000)
Settlements	(181,000,000)	(246,000,000)	(707,000,000)	(591,000,000)
Transfers into and/or out of level 3	(682,000,000)	71,000,000	(831,000,000)	(513,000,000)
Ending balance	(1,936,000,000)	(1,897,000,000)	(1,936,000,000)	(1,897,000,000)
Change in unrealized gains/(losses) related to financial instruments held	$ (86,000,000)	457,000,000	$ 1,029,000,000	(993,000,000)
Level 3 Rollforward Supplemental Data [Abstract]
Level 3 liabilities as a percentage of total firm liabilities at fair value	13.00%		13.00%		15.00%
Deposits
Liabilities
Beginning balance	$ 3,528,000,000	2,838,000,000	$ 2,859,000,000	2,255,000,000
Total realized/unrealized (gains)/losses	42,000,000	(52,000,000)	(22,000,000)	59,000,000
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	327,000,000	452,000,000	1,775,000,000	1,261,000,000
Settlements	(280,000,000)	(44,000,000)	(425,000,000)	(110,000,000)
Transfers into and/or out of level 3	(240,000,000)	(359,000,000)	(810,000,000)	(630,000,000)
Ending balance	3,377,000,000	2,835,000,000	3,377,000,000	2,835,000,000
Change in unrealized gains(losses) related to financials instruments held	54,000,000	(52,000,000)	49,000,000	61,000,000
Other borrowed funds
Liabilities
Beginning balance	1,261,000,000	1,538,000,000	1,453,000,000	2,074,000,000
Total realized/unrealized (gains)/losses	(402,000,000)	(45,000,000)	(525,000,000)	(138,000,000)
Purchases	0	0	45,000,000	0
Sales	28,000,000	0	28,000,000	0
Issuances	575,000,000	1,575,000,000	2,897,000,000	4,251,000,000
Settlements	(431,000,000)	(1,494,000,000)	(2,573,000,000)	(4,981,000,000)
Transfers into and/or out of level 3	(263,000,000)	418,000,000	(557,000,000)	786,000,000
Ending balance	768,000,000	1,992,000,000	768,000,000	1,992,000,000
Change in unrealized gains(losses) related to financials instruments held	(317,000,000)	(41,000,000)	(424,000,000)	51,000,000
Total trading assets – debt and equity instruments
Liabilities
Beginning balance	72,000,000	80,000,000	72,000,000	113,000,000
Total realized/unrealized (gains)/losses	8,000,000	(12,000,000)	13,000,000	(16,000,000)
Purchases	(10,000,000)	(36,000,000)	(141,000,000)	(298,000,000)
Sales	2,000,000	22,000,000	149,000,000	301,000,000
Issuances	0	0	0	0
Settlements	(6,000,000)	9,000,000	(20,000,000)	1,000,000
Transfers into and/or out of level 3	1,000,000	(9,000,000)	(6,000,000)	(47,000,000)
Ending balance	67,000,000	54,000,000	67,000,000	54,000,000
Change in unrealized gains(losses) related to financials instruments held	7,000,000	(12,000,000)	7,000,000	(6,000,000)
Accounts payable and other liabilities
Liabilities
Beginning balance	23,000,000	45,000,000	26,000,000	25,000,000
Total realized/unrealized (gains)/losses	0	0	0	27,000,000
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(2,000,000)	(5,000,000)	(5,000,000)	(12,000,000)
Transfers into and/or out of level 3	0	0	0	0
Ending balance	21,000,000	40,000,000	21,000,000	40,000,000
Change in unrealized gains(losses) related to financials instruments held	0	0	0	0
Beneficial interests issued by consolidated VIEs
Liabilities
Beginning balance	1,140,000,000	1,062,000,000	1,146,000,000	1,240,000,000
Total realized/unrealized (gains)/losses	(35,000,000)	(42,000,000)	(52,000,000)	59,000,000
Purchases	(59,000,000)	0	(75,000,000)	0
Sales	0	0	0	0
Issuances	0	653,000,000	286,000,000	735,000,000
Settlements	(28,000,000)	(24,000,000)	(287,000,000)	(283,000,000)
Transfers into and/or out of level 3	0	0	0	(102,000,000)
Ending balance	1,018,000,000	1,649,000,000	1,018,000,000	1,649,000,000
Change in unrealized gains(losses) related to financials instruments held	(36,000,000)	(44,000,000)	(49,000,000)	45,000,000
Long-term debt
Liabilities
Beginning balance	12,589,000,000	11,746,000,000	11,877,000,000	10,008,000,000
Total realized/unrealized (gains)/losses	(420,000,000)	(382,000,000)	(617,000,000)	157,000,000
Purchases	(11,000,000)	0	(11,000,000)	0
Sales	0	0	(12,000,000)	0
Issuances	2,057,000,000	2,175,000,000	7,440,000,000	5,919,000,000
Settlements	(1,048,000,000)	(1,583,000,000)	(5,193,000,000)	(3,962,000,000)
Transfers into and/or out of level 3	(2,311,000,000)	4,000,000	(2,628,000,000)	(162,000,000)
Ending balance	10,856,000,000	11,960,000,000	10,856,000,000	11,960,000,000
Change in unrealized gains(losses) related to financials instruments held	(392,000,000)	(266,000,000)	(583,000,000)	231,000,000
Interest rate
Net derivative receivables:
Beginning balance	859,000,000	1,533,000,000	626,000,000	2,379,000,000
Total realized/unrealized gains/(losses)	244,000,000	(46,000,000)	737,000,000	(20,000,000)
Purchases	9,000,000	31,000,000	451,000,000	129,000,000
Sales	(6,000,000)	(61,000,000)	(164,000,000)	(167,000,000)
Settlements	(147,000,000)	(232,000,000)	(500,000,000)	(997,000,000)
Transfers into and/or out of level 3	(128,000,000)	(15,000,000)	(319,000,000)	(114,000,000)
Ending balance	831,000,000	1,210,000,000	831,000,000	1,210,000,000
Change in unrealized gains/(losses) related to financial instruments held	77,000,000	(133,000,000)	310,000,000	(643,000,000)
Credit
Net derivative receivables:
Beginning balance	432,000,000	134,000,000	189,000,000	95,000,000
Total realized/unrealized gains/(losses)	7,000,000	89,000,000	101,000,000	(150,000,000)
Purchases	6,000,000	23,000,000	16,000,000	245,000,000
Sales	(1,000,000)	(4,000,000)	(5,000,000)	(25,000,000)
Settlements	48,000,000	19,000,000	174,000,000	146,000,000
Transfers into and/or out of level 3	20,000,000	(2,000,000)	37,000,000	(52,000,000)
Ending balance	512,000,000	259,000,000	512,000,000	259,000,000
Change in unrealized gains/(losses) related to financial instruments held	13,000,000	112,000,000	237,000,000	(74,000,000)
Foreign exchange
Net derivative receivables:
Beginning balance	405,000,000	(1,194,000,000)	(526,000,000)	(1,200,000,000)
Total realized/unrealized gains/(losses)	(254,000,000)	176,000,000	691,000,000	(166,000,000)
Purchases	1,000,000	43,000,000	14,000,000	137,000,000
Sales	(135,000,000)	(3,000,000)	(146,000,000)	(22,000,000)
Settlements	(154,000,000)	51,000,000	(140,000,000)	306,000,000
Transfers into and/or out of level 3	(398,000,000)	(4,000,000)	(428,000,000)	14,000,000
Ending balance	(535,000,000)	(931,000,000)	(535,000,000)	(931,000,000)
Change in unrealized gains/(losses) related to financial instruments held	(222,000,000)	194,000,000	222,000,000	(389,000,000)
Equity
Net derivative receivables:
Beginning balance	(1,848,000,000)	(2,206,000,000)	(1,785,000,000)	(1,063,000,000)
Total realized/unrealized gains/(losses)	348,000,000	(201,000,000)	673,000,000	(273,000,000)
Purchases	196,000,000	699,000,000	620,000,000	1,557,000,000
Sales	(187,000,000)	(791,000,000)	(859,000,000)	(2,371,000,000)
Settlements	172,000,000	(4,000,000)	(90,000,000)	47,000,000
Transfers into and/or out of level 3	(205,000,000)	82,000,000	(83,000,000)	(318,000,000)
Ending balance	(1,524,000,000)	(2,421,000,000)	(1,524,000,000)	(2,421,000,000)
Change in unrealized gains/(losses) related to financial instruments held	277,000,000	(164,000,000)	414,000,000	239,000,000
Commodity
Net derivative receivables:
Beginning balance	(594,000,000)	(122,000,000)	(565,000,000)	115,000,000
Total realized/unrealized gains/(losses)	(553,000,000)	178,000,000	(464,000,000)	6,000,000
Purchases	0	0	0	1,000,000
Sales	(2,000,000)	0	(2,000,000)	0
Settlements	(100,000,000)	(80,000,000)	(151,000,000)	(93,000,000)
Transfers into and/or out of level 3	29,000,000	10,000,000	(38,000,000)	(43,000,000)
Ending balance	(1,220,000,000)	(14,000,000)	(1,220,000,000)	(14,000,000)
Change in unrealized gains/(losses) related to financial instruments held	(231,000,000)	448,000,000	(154,000,000)	(126,000,000)
Total mortgage-backed securities
Assets
Fair value, beginning balance	1,162,000,000	1,995,000,000	1,891,000,000	2,163,000,000
Total realized/unrealized gains/(losses)	(20,000,000)	(33,000,000)	53,000,000	116,000,000
Purchases	98,000,000	477,000,000	637,000,000	1,774,000,000
Sales	(131,000,000)	(455,000,000)	(959,000,000)	(1,624,000,000)
Settlements	(45,000,000)	(42,000,000)	(143,000,000)	(174,000,000)
Transfers into and/or out of level 3	(130,000,000)	(30,000,000)	(545,000,000)	(343,000,000)
Fair value, ending balance	934,000,000	1,912,000,000	934,000,000	1,912,000,000
Change in unrealized gains/(losses) related to financial instruments held	(75,000,000)	(46,000,000)	(39,000,000)	16,000,000
Mortgage-backed securities, U.S. government agencies
Assets
Fair value, beginning balance	901,000,000	1,125,000,000	922,000,000	1,005,000,000
Total realized/unrealized gains/(losses)	(81,000,000)	(18,000,000)	(43,000,000)	12,000,000
Purchases	68,000,000	2,000,000	250,000,000	345,000,000
Sales	(21,000,000)	(12,000,000)	(186,000,000)	(186,000,000)
Settlements	(28,000,000)	(31,000,000)	(102,000,000)	(91,000,000)
Transfers into and/or out of level 3	(53,000,000)	(8,000,000)	(55,000,000)	(27,000,000)
Fair value, ending balance	786,000,000	1,058,000,000	786,000,000	1,058,000,000
Change in unrealized gains/(losses) related to financial instruments held	(79,000,000)	(18,000,000)	(41,000,000)	16,000,000
Mortgage-backed securities, Residential - nonagency
Assets
Fair value, beginning balance	123,000,000	543,000,000	663,000,000	726,000,000
Total realized/unrealized gains/(losses)	64,000,000	(13,000,000)	108,000,000	78,000,000
Purchases	25,000,000	224,000,000	202,000,000	597,000,000
Sales	(95,000,000)	(120,000,000)	(558,000,000)	(634,000,000)
Settlements	(9,000,000)	(5,000,000)	(19,000,000)	(29,000,000)
Transfers into and/or out of level 3	11,000,000	(38,000,000)	(277,000,000)	(147,000,000)
Fair value, ending balance	119,000,000	591,000,000	119,000,000	591,000,000
Change in unrealized gains/(losses) related to financial instruments held	8,000,000	(22,000,000)	7,000,000	5,000,000
Mortgage-backed securities, Commercial - nonagency
Assets
Fair value, beginning balance	138,000,000	327,000,000	306,000,000	432,000,000
Total realized/unrealized gains/(losses)	(3,000,000)	(2,000,000)	(12,000,000)	26,000,000
Purchases	5,000,000	251,000,000	185,000,000	832,000,000
Sales	(15,000,000)	(323,000,000)	(215,000,000)	(804,000,000)
Settlements	(8,000,000)	(6,000,000)	(22,000,000)	(54,000,000)
Transfers into and/or out of level 3	(88,000,000)	16,000,000	(213,000,000)	(169,000,000)
Fair value, ending balance	29,000,000	263,000,000	29,000,000	263,000,000
Change in unrealized gains/(losses) related to financial instruments held	(4,000,000)	(6,000,000)	(5,000,000)	(5,000,000)
Total trading assets – debt and equity instruments
Assets
Fair value, beginning balance	15,941,000,000	25,767,000,000	22,489,000,000	27,206,000,000
Total realized/unrealized gains/(losses)	(139,000,000)	(188,000,000)	33,000,000	1,365,000,000
Purchases	2,245,000,000	7,593,000,000	8,304,000,000	19,124,000,000
Sales	(1,418,000,000)	(3,331,000,000)	(8,476,000,000)	(11,811,000,000)
Settlements	(1,725,000,000)	(1,611,000,000)	(2,973,000,000)	(6,424,000,000)
Transfers into and/or out of level 3	(1,825,000,000)	140,000,000	(6,298,000,000)	(1,090,000,000)
Fair value, ending balance	13,079,000,000	28,370,000,000	13,079,000,000	28,370,000,000
Change in unrealized gains/(losses) related to financial instruments held	(195,000,000)	39,000,000	(272,000,000)	988,000,000
Total available-for-sale securities
Assets
Fair value, beginning balance	875,000,000	1,836,000,000	1,037,000,000	2,322,000,000
Total realized/unrealized gains/(losses)	(27,000,000)	(43,000,000)	(34,000,000)	(56,000,000)
Purchases	0	50,000,000	49,000,000	397,000,000
Sales	0	0	(43,000,000)	(2,000,000)
Settlements	(13,000,000)	(172,000,000)	(75,000,000)	(281,000,000)
Transfers into and/or out of level 3	0	0	(99,000,000)	(709,000,000)
Fair value, ending balance	835,000,000	1,671,000,000	835,000,000	1,671,000,000
Change in unrealized gains/(losses) related to financial instruments held	(26,000,000)	(26,000,000)	(28,000,000)	(39,000,000)
Level 3 Rollforward Supplemental Data [Abstract]
Realized gains/(losses) recorded in income	0	(30,000,000)	(7,000,000)	(43,000,000)
Unrealized gains/(losses) recorded in OCI	(27,000,000)	(12,000,000)	(27,000,000)	(13,000,000)
Available-for-sale securities, Asset-backed securities
Assets
Fair value, beginning balance	862,000,000	1,322,000,000	908,000,000	1,088,000,000
Total realized/unrealized gains/(losses)	(27,000,000)	(25,000,000)	(34,000,000)	(36,000,000)
Purchases	0	50,000,000	49,000,000	275,000,000
Sales	0	0	(43,000,000)	(2,000,000)
Settlements	(5,000,000)	(39,000,000)	(50,000,000)	(80,000,000)
Transfers into and/or out of level 3	0	0	0	63,000,000
Fair value, ending balance	830,000,000	1,308,000,000	830,000,000	1,308,000,000
Change in unrealized gains/(losses) related to financial instruments held	(26,000,000)	(24,000,000)	(28,000,000)	(36,000,000)
Available-for-sale securities, Other
Assets
Fair value, beginning balance	13,000,000	514,000,000	129,000,000	1,234,000,000
Total realized/unrealized gains/(losses)	0	(18,000,000)	0	(20,000,000)
Purchases	0	0	0	122,000,000
Sales	0	0	0	0
Settlements	(8,000,000)	(133,000,000)	(25,000,000)	(201,000,000)
Transfers into and/or out of level 3	0	0	(99,000,000)	(772,000,000)
Fair value, ending balance	5,000,000	363,000,000	5,000,000	363,000,000
Change in unrealized gains/(losses) related to financial instruments held	0	(2,000,000)	0	(3,000,000)
Loans
Assets
Fair value, beginning balance	2,295,000,000	4,227,000,000	2,541,000,000	1,931,000,000
Total realized/unrealized gains/(losses)	9,000,000	(240,000,000)	(111,000,000)	(168,000,000)
Purchases	869,000,000	233,000,000	1,286,000,000	3,313,000,000
Sales	0	(89,000,000)	(83,000,000)	(231,000,000)
Settlements	(298,000,000)	(589,000,000)	(758,000,000)	(1,303,000,000)
Transfers into and/or out of level 3	0	0	0	0
Fair value, ending balance	2,875,000,000	3,542,000,000	2,875,000,000	3,542,000,000
Change in unrealized gains/(losses) related to financial instruments held	9,000,000	(241,000,000)	(108,000,000)	(208,000,000)
Mortgage servicing rights (MSRs)
Assets
Fair value, beginning balance	7,571,000,000	8,347,000,000	7,436,000,000	9,614,000,000
Total realized/unrealized gains/(losses)	(765,000,000)	(57,000,000)	(550,000,000)	(1,028,000,000)
Purchases	143,000,000	151,000,000	882,000,000	527,000,000
Sales	0	11,000,000	(375,000,000)	(175,000,000)
Settlements	(233,000,000)	(216,000,000)	(677,000,000)	(702,000,000)
Transfers into and/or out of level 3	0	0	0	0
Fair value, ending balance	6,716,000,000	8,236,000,000	6,716,000,000	8,236,000,000
Change in unrealized gains/(losses) related to financial instruments held	(765,000,000)	(57,000,000)	(550,000,000)	(1,028,000,000)
Other assets, Private equity investments
Assets
Fair value, beginning balance	1,987,000,000	4,630,000,000	2,225,000,000	5,817,000,000
Total realized/unrealized gains/(losses)	(32,000,000)	147,000,000	15,000,000	387,000,000
Purchases	70,000,000	4,000,000	77,000,000	107,000,000
Sales	(267,000,000)	(458,000,000)	(294,000,000)	(1,946,000,000)
Settlements	(58,000,000)	18,000,000	(174,000,000)	(290,000,000)
Transfers into and/or out of level 3	0	0	(149,000,000)	266,000,000
Fair value, ending balance	1,700,000,000	4,341,000,000	1,700,000,000	4,341,000,000
Change in unrealized gains/(losses) related to financial instruments held	(32,000,000)	346,000,000	0	249,000,000
All other
Assets
Fair value, beginning balance	839,000,000	1,199,000,000	959,000,000	1,382,000,000
Total realized/unrealized gains/(losses)	80,000,000	12,000,000	90,000,000	9,000,000
Purchases	0	2,000,000	65,000,000	8,000,000
Sales	0	0	(143,000,000)	(130,000,000)
Settlements	(100,000,000)	(38,000,000)	(152,000,000)	(94,000,000)
Transfers into and/or out of level 3	0	0	0	0
Fair value, ending balance	819,000,000	1,175,000,000	819,000,000	1,175,000,000
Change in unrealized gains/(losses) related to financial instruments held	82,000,000	12,000,000	66,000,000	10,000,000
Obligations of U.S. states and municipalities
Assets
Fair value, beginning balance	1,247,000,000	1,079,000,000	1,273,000,000	1,382,000,000
Total realized/unrealized gains/(losses)	(7,000,000)	158,000,000	6,000,000	145,000,000
Purchases	90,000,000	1,000,000	281,000,000	1,000,000
Sales	(23,000,000)	(49,000,000)	(133,000,000)	(339,000,000)
Settlements	0	0	(27,000,000)	0
Transfers into and/or out of level 3	(735,000,000)	0	(828,000,000)	0
Fair value, ending balance	572,000,000	1,189,000,000	572,000,000	1,189,000,000
Change in unrealized gains/(losses) related to financial instruments held	(8,000,000)	156,000,000	(7,000,000)	14,000,000
Non-U.S. government debt securities
Assets
Fair value, beginning balance	208,000,000	128,000,000	302,000,000	143,000,000
Total realized/unrealized gains/(losses)	11,000,000	7,000,000	20,000,000	26,000,000
Purchases	18,000,000	88,000,000	173,000,000	523,000,000
Sales	(7,000,000)	(20,000,000)	(119,000,000)	(539,000,000)
Settlements	(1,000,000)	(1,000,000)	(43,000,000)	(3,000,000)
Transfers into and/or out of level 3	(143,000,000)	(67,000,000)	(247,000,000)	(15,000,000)
Fair value, ending balance	86,000,000	135,000,000	86,000,000	135,000,000
Change in unrealized gains/(losses) related to financial instruments held	18,000,000	6,000,000	16,000,000	9,000,000
Corporate debt
Assets
Fair value, beginning balance	943,000,000	4,793,000,000	2,989,000,000	5,920,000,000
Total realized/unrealized gains/(losses)	(21,000,000)	(88,000,000)	(71,000,000)	280,000,000
Purchases	123,000,000	1,280,000,000	944,000,000	3,640,000,000
Sales	(100,000,000)	(776,000,000)	(909,000,000)	(2,791,000,000)
Settlements	(84,000,000)	(72,000,000)	(119,000,000)	(1,736,000,000)
Transfers into and/or out of level 3	(24,000,000)	(75,000,000)	(1,997,000,000)	(251,000,000)
Fair value, ending balance	837,000,000	5,062,000,000	837,000,000	5,062,000,000
Change in unrealized gains/(losses) related to financial instruments held	(6,000,000)	168,000,000	(2,000,000)	458,000,000
Trading loans
Assets
Fair value, beginning balance	9,563,000,000	13,521,000,000	13,287,000,000	13,455,000,000
Total realized/unrealized gains/(losses)	(73,000,000)	(179,000,000)	(64,000,000)	512,000,000
Purchases	945,000,000	4,563,000,000	2,841,000,000	9,850,000,000
Sales	(672,000,000)	(1,476,000,000)	(3,821,000,000)	(4,378,000,000)
Settlements	(1,494,000,000)	(1,349,000,000)	(2,313,000,000)	(4,067,000,000)
Transfers into and/or out of level 3	(255,000,000)	251,000,000	(1,916,000,000)	(41,000,000)
Fair value, ending balance	8,014,000,000	15,331,000,000	8,014,000,000	15,331,000,000
Change in unrealized gains/(losses) related to financial instruments held	(104,000,000)	(184,000,000)	(254,000,000)	297,000,000
Asset-backed securities
Assets
Fair value, beginning balance	1,539,000,000	1,216,000,000	1,264,000,000	1,272,000,000
Total realized/unrealized gains/(losses)	(15,000,000)	(21,000,000)	(31,000,000)	49,000,000
Purchases	485,000,000	564,000,000	1,781,000,000	1,921,000,000
Sales	(207,000,000)	(477,000,000)	(1,099,000,000)	(1,809,000,000)
Settlements	(10,000,000)	(88,000,000)	(4,000,000)	(259,000,000)
Transfers into and/or out of level 3	14,000,000	26,000,000	(105,000,000)	46,000,000
Fair value, ending balance	1,806,000,000	1,220,000,000	1,806,000,000	1,220,000,000
Change in unrealized gains/(losses) related to financial instruments held	(14,000,000)	(27,000,000)	(19,000,000)	(19,000,000)
Debt securities
Assets
Fair value, beginning balance	14,662,000,000	22,732,000,000	21,006,000,000	24,335,000,000
Total realized/unrealized gains/(losses)	(125,000,000)	(156,000,000)	(87,000,000)	1,128,000,000
Purchases	1,759,000,000	6,973,000,000	6,657,000,000	17,709,000,000
Sales	(1,140,000,000)	(3,253,000,000)	(7,040,000,000)	(11,480,000,000)
Settlements	(1,634,000,000)	(1,552,000,000)	(2,649,000,000)	(6,239,000,000)
Transfers into and/or out of level 3	(1,273,000,000)	105,000,000	(5,638,000,000)	(604,000,000)
Fair value, ending balance	12,249,000,000	24,849,000,000	12,249,000,000	24,849,000,000
Change in unrealized gains/(losses) related to financial instruments held	(189,000,000)	73,000,000	(305,000,000)	775,000,000
Equity securities
Assets
Fair value, beginning balance	310,000,000	691,000,000	431,000,000	867,000,000
Total realized/unrealized gains/(losses)	9,000,000	22,000,000	55,000,000	122,000,000
Purchases	26,000,000	140,000,000	76,000,000	225,000,000
Sales	(15,000,000)	(12,000,000)	(138,000,000)	(87,000,000)
Settlements	(2,000,000)	(42,000,000)	(19,000,000)	(72,000,000)
Transfers into and/or out of level 3	7,000,000	35,000,000	(70,000,000)	(221,000,000)
Fair value, ending balance	335,000,000	834,000,000	335,000,000	834,000,000
Change in unrealized gains/(losses) related to financial instruments held	9,000,000	19,000,000	58,000,000	92,000,000
Physical commodities
Assets
Fair value, beginning balance		3,000,000		4,000,000
Total realized/unrealized gains/(losses)		(1,000,000)		(1,000,000)
Purchases		0		0
Sales		0		0
Settlements		0		(1,000,000)
Transfers into and/or out of level 3		0		0
Fair value, ending balance		2,000,000		2,000,000
Change in unrealized gains/(losses) related to financial instruments held		0		(1,000,000)
Other
Assets
Fair value, beginning balance	969,000,000	2,341,000,000	1,052,000,000	2,000,000,000
Total realized/unrealized gains/(losses)	(23,000,000)	(53,000,000)	65,000,000	116,000,000
Purchases	460,000,000	480,000,000	1,571,000,000	1,190,000,000
Sales	(263,000,000)	(66,000,000)	(1,298,000,000)	(244,000,000)
Settlements	(89,000,000)	(17,000,000)	(305,000,000)	(112,000,000)
Transfers into and/or out of level 3	(559,000,000)	0	(590,000,000)	(265,000,000)
Fair value, ending balance	495,000,000	2,685,000,000	495,000,000	2,685,000,000
Change in unrealized gains/(losses) related to financial instruments held	$ (15,000,000)	$ (53,000,000)	$ (25,000,000)	$ 122,000,000