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Fair Value Measurements - Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | $ 811 | $ 735
Securities available for sale | 33,923 | 27,556
Loans, net of unearned income (residential) | 100,926 | 101,185
Derivative assets, netting adjustments | (258) | (380)
Total derivative assets | 1,524 | 1,798
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, netting adjustments | (861) | (675)
U.S. Treasury, agencies and corporations |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 4,901 | 1,000
States and political subdivisions |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Other securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 22 | 13
Agency residential mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 4,026 | 2,164
Mortgage-backed securities | Agency commercial mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 10,525 | 10,106
Other |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 8 |
Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Total trading account securities | 798 | 717
Commercial loans | 13 | 18
Total trading account assets | 811 | 735
Securities available for sale | 33,923 | 27,556
Total other investments | 88 | 81
Loans, net of unearned income (residential) | 11 | 11
Loans held for sale (residential) | 236 | 264
Derivative assets, gross | 1,782 | 2,178
Derivative assets, netting adjustments | (258) | (380)
Total derivative assets | 1,524 | 1,798
Accrued income and other assets | 0 | 0
Total assets at fair value | 36,593 | 30,445
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Total liabilities on a recurring basis at fair value | 926 | 910
Recurring | U.S. Treasury Bills |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Recurring | U.S. Treasury, agencies and corporations |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 550 | 633
Securities available for sale | 4,901 | 1,000
Recurring | States and political subdivisions |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 72 | 24
Securities available for sale | 0 | 0
Recurring | Other securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 14 | 13
Securities available for sale | 22 | 13
Recurring | Agency commercial mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 10,525 | 10,106
Recurring | Principal investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 1 | 1
Recurring | Principal Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 52 | 54
Recurring | Equity Investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 22 | 13
Recurring | Equity Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 36 | 27
Recurring | Mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 162 | 47
Recurring | Mortgage-backed securities | Agency residential mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 4,026 | 2,164
Recurring | Short positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Short positions | 743 | 759
Recurring | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 1,044 | 826
Derivative liabilities, netting adjustments | (861) | (675)
Total derivative liabilities | 183 | 151
Recurring | Interest rate |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 1,015 | 1,584
Recurring | Interest rate | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 318 | 288
Recurring | Foreign exchange |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 95 | 109
Recurring | Foreign exchange | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 84 | 103
Recurring | Commodity |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 638 | 426
Recurring | Commodity | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 620 | 408
Recurring | Credit |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 1 | 1
Recurring | Credit | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 8 | 11
Recurring | Other |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 33 | 58
Recurring | Other | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 14 | 16
Level 1 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Total trading account securities | 0 | 0
Commercial loans | 0 | 0
Total trading account assets | 0 | 0
Securities available for sale | 0 | 0
Total other investments | 0 | 0
Loans, net of unearned income (residential) | 0 | 0
Loans held for sale (residential) | 0 | 0
Derivative assets, gross | 74 | 78
Derivative assets, netting adjustments | 0 | 0
Total derivative assets | 74 | 78
Accrued income and other assets | 0 | 0
Total assets at fair value | 74 | 78
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Total liabilities on a recurring basis at fair value | 207 | 328
Level 1 | Recurring | U.S. Treasury Bills |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Level 1 | Recurring | U.S. Treasury, agencies and corporations |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 0 | 0
Level 1 | Recurring | States and political subdivisions |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 0 | 0
Level 1 | Recurring | Other securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 0 | 0
Level 1 | Recurring | Agency commercial mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Level 1 | Recurring | Principal investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 1 | Recurring | Principal Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 1 | Recurring | Equity Investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 1 | Recurring | Equity Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 1 | Recurring | Mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Level 1 | Recurring | Mortgage-backed securities | Agency residential mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Level 1 | Recurring | Short positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Short positions | 143 | 256
Level 1 | Recurring | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 64 | 72
Derivative liabilities, netting adjustments | 0 | 0
Total derivative liabilities | 64 | 72
Level 1 | Recurring | Interest rate |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 1 | Recurring | Interest rate | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 1 | Recurring | Foreign exchange |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 74 | 78
Level 1 | Recurring | Foreign exchange | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 64 | 72
Level 1 | Recurring | Commodity |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 1 | Recurring | Commodity | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 1 | Recurring | Credit |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 1 | Recurring | Credit | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 1 | Recurring | Other |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 1 | Recurring | Other | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 2 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Total trading account securities | 798 | 717
Commercial loans | 13 | 18
Total trading account assets | 811 | 735
Securities available for sale | 33,901 | 27,543
Total other investments | 13 | 0
Loans, net of unearned income (residential) | 0 | 0
Loans held for sale (residential) | 236 | 264
Derivative assets, gross | 1,669 | 2,009
Derivative assets, netting adjustments | 0 | 0
Total derivative assets | 1,669 | 2,009
Accrued income and other assets | 0 | 0
Total assets at fair value | 36,630 | 30,551
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Total liabilities on a recurring basis at fair value | 1,572 | 1,246
Level 2 | Recurring | U.S. Treasury Bills |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Level 2 | Recurring | U.S. Treasury, agencies and corporations |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 550 | 633
Securities available for sale | 4,901 | 1,000
Level 2 | Recurring | States and political subdivisions |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 72 | 24
Securities available for sale | 0 | 0
Level 2 | Recurring | Other securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 14 | 13
Securities available for sale | 0 | 0
Level 2 | Recurring | Agency commercial mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 10,525 | 10,106
Level 2 | Recurring | Principal investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 2 | Recurring | Principal Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 0 | 0
Level 2 | Recurring | Equity Investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 13 | 0
Level 2 | Recurring | Equity Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 13 | 0
Level 2 | Recurring | Mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 162 | 47
Level 2 | Recurring | Mortgage-backed securities | Agency residential mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 4,026 | 2,164
Level 2 | Recurring | Short positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Short positions | 600 | 503
Level 2 | Recurring | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 972 | 743
Derivative liabilities, netting adjustments | 0 | 0
Total derivative liabilities | 972 | 743
Level 2 | Recurring | Interest rate |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 985 | 1,528
Level 2 | Recurring | Interest rate | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 318 | 288
Level 2 | Recurring | Foreign exchange |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 21 | 31
Level 2 | Recurring | Foreign exchange | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 20 | 31
Level 2 | Recurring | Commodity |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 638 | 424
Level 2 | Recurring | Commodity | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 620 | 408
Level 2 | Recurring | Credit |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 2 | Recurring | Credit | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 3 | 0
Level 2 | Recurring | Other |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 25 | 26
Level 2 | Recurring | Other | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 11 | 16
Level 3 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Total trading account securities | 0 | 0
Commercial loans | 0 | 0
Total trading account assets | 0 | 0
Securities available for sale | 22 | 13
Total other investments | 10 | 14
Loans, net of unearned income (residential) | 11 | 11
Loans held for sale (residential) | 0 | 0
Derivative assets, gross | 39 | 91
Derivative assets, netting adjustments | 0 | 0
Total derivative assets | 39 | 91
Accrued income and other assets | 0 | 0
Total assets at fair value | 82 | 129
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Total liabilities on a recurring basis at fair value | 8 | 11
Level 3 | Recurring | U.S. Treasury Bills |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total short-term investments | 0 | 0
Level 3 | Recurring | U.S. Treasury, agencies and corporations |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 0 | 0
Level 3 | Recurring | States and political subdivisions |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 0 | 0
Level 3 | Recurring | Other securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Securities available for sale | 22 | 13
Level 3 | Recurring | Agency commercial mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Level 3 | Recurring | Principal investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 1 | 1
Level 3 | Recurring | Principal Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 1 | 1
Level 3 | Recurring | Equity Investments, Direct |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 9 | 13
Level 3 | Recurring | Equity Investments |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 9 | 13
Level 3 | Recurring | Mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total trading account securities | 0 | 0
Level 3 | Recurring | Mortgage-backed securities | Agency residential mortgage-backed securities |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Level 3 | Recurring | Short positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Short positions | 0 | 0
Level 3 | Recurring | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 8 | 11
Derivative liabilities, netting adjustments | 0 | 0
Total derivative liabilities | 8 | 11
Level 3 | Recurring | Interest rate |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 30 | 56
Level 3 | Recurring | Interest rate | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 3 | Recurring | Foreign exchange |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 0
Level 3 | Recurring | Foreign exchange | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 3 | Recurring | Commodity |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 0 | 2
Level 3 | Recurring | Commodity | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 0 | 0
Level 3 | Recurring | Credit |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross | 1 | 1
Level 3 | Recurring | Credit | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 5 | 11
Level 3 | Recurring | Other |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Derivative assets, gross |  | 32
Level 3 | Recurring | Other | Long positions |  |
LIABILITIES MEASURED ON A RECURRING BASIS |  |
Derivative liabilities, gross | 3 | 0
Measured at NAV | Recurring | Equity Investments Direct, NAV |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 7 | 7
Measured at NAV | Recurring | Equity Investments Indirect, NAV |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Total other investments | 7 | 7
Agency residential collateralized mortgage obligations | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 14,449 | 14,273
Agency residential collateralized mortgage obligations | Level 1 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 0 | 0
Agency residential collateralized mortgage obligations | Level 2 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | 14,449 | 14,273
Agency residential collateralized mortgage obligations | Level 3 | Recurring |  |
ASSETS MEASURED ON A RECURRING BASIS |  |
Securities available for sale | $ 0 | $ 0

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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=117332851&loc=SL7495116-110257 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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