Fair Value Measurement - Changes in Level 3 Recurring Measurements (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Net derivative receivables:
Fair value, beginning balance	$ (2,510,000,000)	$ (5,139,000,000)	$ (4,894,000,000)	$ (4,993,000,000)
Total realized/unrealized gains/(losses)	2,837,000,000	(796,000,000)	4,634,000,000	(591,000,000)
Purchases	298,000,000	343,000,000	1,108,000,000	597,000,000
Sales	(692,000,000)	(547,000,000)	(1,510,000,000)	(1,699,000,000)
Settlements	(26,000,000)	113,000,000	698,000,000	122,000,000
Transfers into level 3	(159,000,000)	(98,000,000)	(526,000,000)	75,000,000
Transfers (out of) level 3	(42,000,000)	(601,000,000)	196,000,000	(236,000,000)
Fair value, ending balance	(294,000,000)	(6,725,000,000)	(294,000,000)	(6,725,000,000)
Change in unrealized gains/(losses) related to financial instruments held	$ 2,844,000,000	(1,059,000,000)	$ 4,688,000,000	(1,413,000,000)
Level 3 Rollforward Supplemental Data [Abstract]
Level 3 assets as a percentage of total firm assets at fair value	2.00%		2.00%		2.00%
Level 3 liabilities as a percentage of total firm liabilities at fair value	8.00%		8.00%		10.00%
Deposits
Liabilities:
Fair value, beginning balance	$ 2,121,000,000	2,652,000,000	$ 2,317,000,000	2,913,000,000
Total realized/unrealized (gains)/losses	(160,000,000)	47,000,000	(302,000,000)	(56,000,000)
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	138,000,000	150,000,000	246,000,000	219,000,000
Settlements	(21,000,000)	(93,000,000)	(69,000,000)	(188,000,000)
Transfers into level 3	0	1,000,000	0	2,000,000
Transfers (out of) level 3	(46,000,000)	(73,000,000)	(160,000,000)	(206,000,000)
Fair value, ending balance	2,032,000,000	2,684,000,000	2,032,000,000	2,684,000,000
Change in unrealized (gains)/losses related to financials instruments held	(160,000,000)	47,000,000	(298,000,000)	(56,000,000)
Short-term borrowings
Liabilities:
Fair value, beginning balance	2,146,000,000	3,664,000,000	2,481,000,000	2,420,000,000
Total realized/unrealized (gains)/losses	14,000,000	(283,000,000)	(387,000,000)	(396,000,000)
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	963,000,000	1,395,000,000	2,386,000,000	4,313,000,000
Settlements	(1,036,000,000)	(1,706,000,000)	(2,383,000,000)	(3,212,000,000)
Transfers into level 3	14,000,000	9,000,000	15,000,000	9,000,000
Transfers (out of) level 3	0	(4,000,000)	(11,000,000)	(59,000,000)
Fair value, ending balance	2,101,000,000	3,075,000,000	2,101,000,000	3,075,000,000
Change in unrealized (gains)/losses related to financials instruments held	93,000,000	35,000,000	7,000,000	18,000,000
Total debt and equity instruments
Liabilities:
Fair value, beginning balance	41,000,000	60,000,000	30,000,000	51,000,000
Total realized/unrealized (gains)/losses	1,000,000	(1,000,000)	(16,000,000)	(4,000,000)
Purchases	(20,000,000)	(27,000,000)	(34,000,000)	(92,000,000)
Sales	4,000,000	13,000,000	34,000,000	34,000,000
Issuances	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	30,000,000	0	44,000,000	59,000,000
Transfers (out of) level 3	0	(9,000,000)	(2,000,000)	(12,000,000)
Fair value, ending balance	56,000,000	36,000,000	56,000,000	36,000,000
Change in unrealized (gains)/losses related to financials instruments held	1,000,000	0	15,000,000	10,000,000
Accounts payable and other liabilities
Liabilities:
Fair value, beginning balance	108,000,000	61,000,000	69,000,000	68,000,000
Total realized/unrealized (gains)/losses	(2,000,000)	(9,000,000)	(6,000,000)	(10,000,000)
Purchases	(28,000,000)	0	(28,000,000)	0
Sales	1,000,000	0	43,000,000	1,000,000
Issuances	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	0	0	1,000,000	0
Transfers (out of) level 3	(6,000,000)	(1,000,000)	(6,000,000)	(8,000,000)
Fair value, ending balance	73,000,000	51,000,000	73,000,000	51,000,000
Change in unrealized (gains)/losses related to financials instruments held	(2,000,000)	(8,000,000)	(6,000,000)	(10,000,000)
Beneficial interests issued by consolidated VIEs
Liabilities:
Fair value, beginning balance	0	0
Total realized/unrealized (gains)/losses	0	0
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	0	0
Transfers into level 3	0	0
Transfers (out of) level 3	0	0
Fair value, ending balance	0	0	0	0
Change in unrealized (gains)/losses related to financials instruments held	0	0
Long-term debt
Liabilities:
Fair value, beginning balance	24,394,000,000	22,575,000,000	24,374,000,000	23,397,000,000
Total realized/unrealized (gains)/losses	(2,640,000,000)	714,000,000	(4,308,000,000)	406,000,000
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	3,470,000,000	3,469,000,000	7,520,000,000	6,934,000,000
Settlements	(2,045,000,000)	(3,089,000,000)	(4,521,000,000)	(6,738,000,000)
Transfers into level 3	179,000,000	7,000,000	442,000,000	18,000,000
Transfers (out of) level 3	(281,000,000)	(149,000,000)	(430,000,000)	(490,000,000)
Fair value, ending balance	23,077,000,000	23,527,000,000	23,077,000,000	23,527,000,000
Change in unrealized (gains)/losses related to financials instruments held	(2,613,000,000)	708,000,000	(4,151,000,000)	305,000,000
DVA for fair value option elected liabilities
Level 3 Rollforward Supplemental Data [Abstract]
Unrealized (gains)/losses on liabilities recorded in OCI	(344,000,000)	5,000,000	(574,000,000)	(17,000,000)
Interest rate
Net derivative receivables:
Fair value, beginning balance	367,000,000	149,000,000	(16,000,000)	258,000,000
Total realized/unrealized gains/(losses)	160,000,000	524,000,000	393,000,000	969,000,000
Purchases	99,000,000	18,000,000	225,000,000	71,000,000
Sales	(135,000,000)	(9,000,000)	(229,000,000)	(102,000,000)
Settlements	105,000,000	(657,000,000)	256,000,000	(1,191,000,000)
Transfers into level 3	44,000,000	(2,000,000)	17,000,000	55,000,000
Transfers (out of) level 3	(220,000,000)	(45,000,000)	(226,000,000)	(82,000,000)
Fair value, ending balance	420,000,000	(22,000,000)	420,000,000	(22,000,000)
Change in unrealized gains/(losses) related to financial instruments held	204,000,000	198,000,000	428,000,000	233,000,000
Credit
Net derivative receivables:
Fair value, beginning balance	44,000,000	(4,000,000)	74,000,000	(224,000,000)
Total realized/unrealized gains/(losses)	264,000,000	(34,000,000)	331,000,000	149,000,000
Purchases	4,000,000	1,000,000	8,000,000	2,000,000
Sales	(3,000,000)	(2,000,000)	(7,000,000)	(4,000,000)
Settlements	(65,000,000)	17,000,000	(161,000,000)	44,000,000
Transfers into level 3	1,000,000	(6,000,000)	(2,000,000)	(9,000,000)
Transfers (out of) level 3	4,000,000	11,000,000	6,000,000	25,000,000
Fair value, ending balance	249,000,000	(17,000,000)	249,000,000	(17,000,000)
Change in unrealized gains/(losses) related to financial instruments held	255,000,000	(13,000,000)	330,000,000	134,000,000
Foreign exchange
Net derivative receivables:
Fair value, beginning balance	76,000,000	(539,000,000)	(419,000,000)	(434,000,000)
Total realized/unrealized gains/(losses)	193,000,000	2,000,000	538,000,000	(198,000,000)
Purchases	15,000,000	37,000,000	147,000,000	39,000,000
Sales	(19,000,000)	(48,000,000)	(43,000,000)	(54,000,000)
Settlements	(38,000,000)	(12,000,000)	32,000,000	99,000,000
Transfers into level 3	24,000,000	1,000,000	18,000,000	11,000,000
Transfers (out of) level 3	(6,000,000)	(24,000,000)	(28,000,000)	(46,000,000)
Fair value, ending balance	245,000,000	(583,000,000)	245,000,000	(583,000,000)
Change in unrealized gains/(losses) related to financial instruments held	174,000,000	(104,000,000)	486,000,000	32,000,000
Equity
Net derivative receivables:
Fair value, beginning balance	(2,583,000,000)	(3,834,000,000)	(3,626,000,000)	(3,862,000,000)
Total realized/unrealized gains/(losses)	1,838,000,000	(941,000,000)	2,568,000,000	(918,000,000)
Purchases	162,000,000	281,000,000	660,000,000	475,000,000
Sales	(466,000,000)	(407,000,000)	(1,025,000,000)	(1,245,000,000)
Settlements	(140,000,000)	600,000,000	303,000,000	726,000,000
Transfers into level 3	(227,000,000)	(91,000,000)	(558,000,000)	19,000,000
Transfers (out of) level 3	182,000,000	(544,000,000)	444,000,000	(131,000,000)
Fair value, ending balance	(1,234,000,000)	(4,936,000,000)	(1,234,000,000)	(4,936,000,000)
Change in unrealized gains/(losses) related to financial instruments held	1,788,000,000	(942,000,000)	2,975,000,000	(1,258,000,000)
Commodity
Net derivative receivables:
Fair value, beginning balance	(414,000,000)	(911,000,000)	(907,000,000)	(731,000,000)
Total realized/unrealized gains/(losses)	382,000,000	(347,000,000)	804,000,000	(593,000,000)
Purchases	18,000,000	6,000,000	68,000,000	10,000,000
Sales	(69,000,000)	(81,000,000)	(206,000,000)	(294,000,000)
Settlements	112,000,000	165,000,000	268,000,000	444,000,000
Transfers into level 3	(1,000,000)	0	(1,000,000)	(1,000,000)
Transfers (out of) level 3	(2,000,000)	1,000,000	0	(2,000,000)
Fair value, ending balance	26,000,000	(1,167,000,000)	26,000,000	(1,167,000,000)
Change in unrealized gains/(losses) related to financial instruments held	423,000,000	(198,000,000)	469,000,000	(554,000,000)
Federal funds sold and securities purchased under resale agreements
Assets:
Fair value, beginning balance	0		0
Total realized/unrealized gains/(losses)	0		0
Purchases	0		0
Sales	0		0
Settlements	0		0
Transfers into level 3	1,000,000		1,000,000
Transfers (out of) level 3	0		0
Fair value, ending balance	1,000,000		1,000,000
Change in unrealized gains/(losses) related to financial instruments held	0		0
Total mortgage-backed securities
Assets:
Fair value, beginning balance	306,000,000	431,000,000	303,000,000	480,000,000
Total realized/unrealized gains/(losses)	(1,000,000)	(33,000,000)	26,000,000	(9,000,000)
Purchases	648,000,000	18,000,000	670,000,000	33,000,000
Sales	(118,000,000)	(29,000,000)	(125,000,000)	(81,000,000)
Settlements	(8,000,000)	(32,000,000)	(40,000,000)	(67,000,000)
Transfers into level 3	0	1,000,000	0	1,000,000
Transfers (out of) level 3	0	(1,000,000)	(7,000,000)	(2,000,000)
Fair value, ending balance	827,000,000	355,000,000	827,000,000	355,000,000
Change in unrealized gains/(losses) related to financial instruments held	(2,000,000)	(33,000,000)	23,000,000	(12,000,000)
Mortgage-backed securities, U.S. GSEs and government agencies
Assets:
Fair value, beginning balance	286,000,000	397,000,000	265,000,000	449,000,000
Total realized/unrealized gains/(losses)	(1,000,000)	(33,000,000)	26,000,000	(10,000,000)
Purchases	643,000,000	1,000,000	665,000,000	7,000,000
Sales	(118,000,000)	(8,000,000)	(125,000,000)	(56,000,000)
Settlements	(7,000,000)	(28,000,000)	(28,000,000)	(61,000,000)
Transfers into level 3	0	1,000,000	0	1,000,000
Transfers (out of) level 3	0	(1,000,000)	0	(1,000,000)
Fair value, ending balance	803,000,000	329,000,000	803,000,000	329,000,000
Change in unrealized gains/(losses) related to financial instruments held	(2,000,000)	(34,000,000)	24,000,000	(12,000,000)
Mortgage-backed securities, Residential - nonagency
Assets:
Fair value, beginning balance	10,000,000	32,000,000	28,000,000	28,000,000
Total realized/unrealized gains/(losses)	0	0	0	1,000,000
Purchases	5,000,000	6,000,000	5,000,000	15,000,000
Sales	0	(21,000,000)	0	(24,000,000)
Settlements	(1,000,000)	(1,000,000)	(12,000,000)	(3,000,000)
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	(7,000,000)	(1,000,000)
Fair value, ending balance	14,000,000	16,000,000	14,000,000	16,000,000
Change in unrealized gains/(losses) related to financial instruments held	0	0	(1,000,000)	0
Mortgage-backed securities, Commercial - nonagency
Assets:
Fair value, beginning balance	10,000,000	2,000,000	10,000,000	3,000,000
Total realized/unrealized gains/(losses)	0	0	0	0
Purchases	0	11,000,000	0	11,000,000
Sales	0	0	0	(1,000,000)
Settlements	0	(3,000,000)	0	(3,000,000)
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	10,000,000	10,000,000	10,000,000	10,000,000
Change in unrealized gains/(losses) related to financial instruments held	0	1,000,000	0	0
Total debt and equity instruments
Assets:
Fair value, beginning balance	2,654,000,000	2,682,000,000	2,279,000,000	2,623,000,000
Total realized/unrealized gains/(losses)	(92,000,000)	20,000,000	(933,000,000)	62,000,000
Purchases	1,326,000,000	693,000,000	2,178,000,000	1,512,000,000
Sales	(451,000,000)	(410,000,000)	(1,035,000,000)	(913,000,000)
Settlements	(318,000,000)	(184,000,000)	(399,000,000)	(256,000,000)
Transfers into level 3	424,000,000	141,000,000	1,630,000,000	372,000,000
Transfers (out of) level 3	(262,000,000)	(342,000,000)	(439,000,000)	(800,000,000)
Fair value, ending balance	3,281,000,000	2,600,000,000	3,281,000,000	2,600,000,000
Change in unrealized gains/(losses) related to financial instruments held	(88,000,000)	32,000,000	(544,000,000)	46,000,000
Total debt instruments
Assets:
Fair value, beginning balance	1,816,000,000	1,872,000,000	1,457,000,000	2,098,000,000
Total realized/unrealized gains/(losses)	(59,000,000)	5,000,000	(88,000,000)	11,000,000
Purchases	1,220,000,000	634,000,000	1,829,000,000	1,158,000,000
Sales	(390,000,000)	(383,000,000)	(734,000,000)	(843,000,000)
Settlements	(160,000,000)	(158,000,000)	(236,000,000)	(201,000,000)
Transfers into level 3	318,000,000	114,000,000	671,000,000	291,000,000
Transfers (out of) level 3	(214,000,000)	(221,000,000)	(368,000,000)	(651,000,000)
Fair value, ending balance	2,531,000,000	1,863,000,000	2,531,000,000	1,863,000,000
Change in unrealized gains/(losses) related to financial instruments held	(58,000,000)	(2,000,000)	(140,000,000)	5,000,000
Obligations of U.S. states and municipalities
Assets:
Fair value, beginning balance	7,000,000	8,000,000	7,000,000	8,000,000
Total realized/unrealized gains/(losses)	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	7,000,000	8,000,000	7,000,000	8,000,000
Change in unrealized gains/(losses) related to financial instruments held	0	0	0	0
Non-U.S. government debt securities
Assets:
Fair value, beginning balance	133,000,000	177,000,000	81,000,000	182,000,000
Total realized/unrealized gains/(losses)	(9,000,000)	1,000,000	(42,000,000)	(8,000,000)
Purchases	177,000,000	84,000,000	405,000,000	202,000,000
Sales	(86,000,000)	(79,000,000)	(266,000,000)	(186,000,000)
Settlements	0	0	0	(7,000,000)
Transfers into level 3	6,000,000	0	43,000,000	0
Transfers (out of) level 3	(16,000,000)	0	(16,000,000)	0
Fair value, ending balance	205,000,000	183,000,000	205,000,000	183,000,000
Change in unrealized gains/(losses) related to financial instruments held	(8,000,000)	(1,000,000)	(106,000,000)	(7,000,000)
Corporate debt securities
Assets:
Fair value, beginning balance	293,000,000	370,000,000	332,000,000	507,000,000
Total realized/unrealized gains/(losses)	(16,000,000)	30,000,000	(35,000,000)	15,000,000
Purchases	272,000,000	228,000,000	333,000,000	319,000,000
Sales	(12,000,000)	(154,000,000)	(71,000,000)	(300,000,000)
Settlements	0	0	(37,000,000)	0
Transfers into level 3	57,000,000	28,000,000	98,000,000	113,000,000
Transfers (out of) level 3	(20,000,000)	(15,000,000)	(46,000,000)	(167,000,000)
Fair value, ending balance	574,000,000	487,000,000	574,000,000	487,000,000
Change in unrealized gains/(losses) related to financial instruments held	(16,000,000)	30,000,000	(44,000,000)	14,000,000
Loans
Assets:
Fair value, beginning balance	1,049,000,000	832,000,000	708,000,000	893,000,000
Total realized/unrealized gains/(losses)	(33,000,000)	(1,000,000)	(37,000,000)	6,000,000
Purchases	122,000,000	294,000,000	419,000,000	566,000,000
Sales	(164,000,000)	(85,000,000)	(262,000,000)	(237,000,000)
Settlements	(152,000,000)	(125,000,000)	(159,000,000)	(126,000,000)
Transfers into level 3	254,000,000	85,000,000	525,000,000	175,000,000
Transfers (out of) level 3	(178,000,000)	(205,000,000)	(296,000,000)	(482,000,000)
Fair value, ending balance	898,000,000	795,000,000	898,000,000	795,000,000
Change in unrealized gains/(losses) related to financial instruments held	(32,000,000)	1,000,000	(13,000,000)	3,000,000
Asset-backed securities
Assets:
Fair value, beginning balance	28,000,000	54,000,000	26,000,000	28,000,000
Total realized/unrealized gains/(losses)	0	8,000,000	0	7,000,000
Purchases	1,000,000	10,000,000	2,000,000	38,000,000
Sales	(10,000,000)	(36,000,000)	(10,000,000)	(39,000,000)
Settlements	0	(1,000,000)	0	(1,000,000)
Transfers into level 3	1,000,000	0	5,000,000	2,000,000
Transfers (out of) level 3	0	0	(3,000,000)	0
Fair value, ending balance	20,000,000	35,000,000	20,000,000	35,000,000
Change in unrealized gains/(losses) related to financial instruments held	0	1,000,000	0	7,000,000
Equity securities
Assets:
Fair value, beginning balance	663,000,000	688,000,000	662,000,000	476,000,000
Total realized/unrealized gains/(losses)	(99,000,000)	8,000,000	(912,000,000)	3,000,000
Purchases	98,000,000	23,000,000	321,000,000	253,000,000
Sales	(61,000,000)	(27,000,000)	(301,000,000)	(70,000,000)
Settlements	0	0	0	0
Transfers into level 3	106,000,000	24,000,000	959,000,000	78,000,000
Transfers (out of) level 3	(46,000,000)	(26,000,000)	(68,000,000)	(50,000,000)
Fair value, ending balance	661,000,000	690,000,000	661,000,000	690,000,000
Change in unrealized gains/(losses) related to financial instruments held	(90,000,000)	15,000,000	(474,000,000)	13,000,000
Physical commodities
Assets:
Fair value, beginning balance	0		0
Total realized/unrealized gains/(losses)	0		0
Purchases	2,000,000		2,000,000
Sales	0		0
Settlements	0		0
Transfers into level 3	0		0
Transfers (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		0
Other
Assets:
Fair value, beginning balance	175,000,000	122,000,000	160,000,000	49,000,000
Total realized/unrealized gains/(losses)	66,000,000	7,000,000	67,000,000	48,000,000
Purchases	6,000,000	36,000,000	26,000,000	101,000,000
Sales	0	0	0	0
Settlements	(158,000,000)	(26,000,000)	(163,000,000)	(55,000,000)
Transfers into level 3	0	3,000,000	0	3,000,000
Transfers (out of) level 3	(2,000,000)	(95,000,000)	(3,000,000)	(99,000,000)
Fair value, ending balance	87,000,000	47,000,000	87,000,000	47,000,000
Change in unrealized gains/(losses) related to financial instruments held	60,000,000	19,000,000	70,000,000	28,000,000
Total available-for-sale securities
Assets:
Fair value, beginning balance	205,000,000	0	161,000,000	0
Total realized/unrealized gains/(losses)	(19,000,000)	0	8,000,000	0
Purchases	0	0	17,000,000	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	186,000,000	0	186,000,000	0
Change in unrealized gains/(losses) related to financial instruments held	(19,000,000)	0	8,000,000	0
Level 3 Rollforward Supplemental Data [Abstract]
Realized gains/(losses) recorded in income	0	0	0	0
Unrealized gains/(losses) recorded on AFS securities in OCI	(19,000,000)	0	8,000,000	0
Mortgage-backed securities
Assets:
Fair value, beginning balance	0	0	0	0
Total realized/unrealized gains/(losses)	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	0	0	0	0
Change in unrealized gains/(losses) related to financial instruments held	0	0	0	0
Corporate debt securities
Assets:
Fair value, beginning balance	205,000,000	0	161,000,000	0
Total realized/unrealized gains/(losses)	(19,000,000)	0	8,000,000	0
Purchases	0	0	17,000,000	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	186,000,000	0	186,000,000	0
Change in unrealized gains/(losses) related to financial instruments held	(19,000,000)	0	8,000,000	0
Loans
Assets:
Fair value, beginning balance	2,072,000,000	1,823,000,000	1,933,000,000	2,305,000,000
Total realized/unrealized gains/(losses)	(82,000,000)	7,000,000	16,000,000	(66,000,000)
Purchases	273,000,000	240,000,000	394,000,000	307,000,000
Sales	(95,000,000)	(135,000,000)	(100,000,000)	(325,000,000)
Settlements	(250,000,000)	(318,000,000)	(531,000,000)	(519,000,000)
Transfers into level 3	226,000,000	445,000,000	616,000,000	600,000,000
Transfers (out of) level 3	(124,000,000)	(328,000,000)	(308,000,000)	(568,000,000)
Fair value, ending balance	2,020,000,000	1,734,000,000	2,020,000,000	1,734,000,000
Change in unrealized gains/(losses) related to financial instruments held	(80,000,000)	(11,000,000)	(24,000,000)	(72,000,000)
Mortgage servicing rights
Assets:
Fair value, beginning balance	7,294,000,000	4,470,000,000	5,494,000,000	3,276,000,000
Total realized/unrealized gains/(losses)	654,000,000	(528,000,000)	1,613,000,000	269,000,000
Purchases	341,000,000	814,000,000	1,471,000,000	1,397,000,000
Sales	(614,000,000)	(25,000,000)	(671,000,000)	(24,000,000)
Settlements	(236,000,000)	(182,000,000)	(468,000,000)	(369,000,000)
Transfers into level 3	0	0	0	0
Transfers (out of) level 3	0	0	0	0
Fair value, ending balance	7,439,000,000	4,549,000,000	7,439,000,000	4,549,000,000
Change in unrealized gains/(losses) related to financial instruments held	654,000,000	(528,000,000)	1,613,000,000	269,000,000
Other assets
Assets:
Fair value, beginning balance	341,000,000	511,000,000	306,000,000	538,000,000
Total realized/unrealized gains/(losses)	116,000,000	31,000,000	125,000,000	44,000,000
Purchases	5,000,000	4,000,000	46,000,000	7,000,000
Sales	(28,000,000)	0	(28,000,000)	(18,000,000)
Settlements	(20,000,000)	(27,000,000)	(37,000,000)	(52,000,000)
Transfers into level 3	0	0	2,000,000	0
Transfers (out of) level 3	(6,000,000)	(1,000,000)	(6,000,000)	(1,000,000)
Fair value, ending balance	408,000,000	518,000,000	408,000,000	518,000,000
Change in unrealized gains/(losses) related to financial instruments held	$ 116,000,000	$ 35,000,000	$ 119,000,000	$ 63,000,000