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Derivative Financial Instruments - Derivative Instruments (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Derivatives, Fair Value [Line Items] |  |  |
Fair Value | $ 391 |  | $ 153
Assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 12,295 | $ 5,746 |
Fair Value | 391 | 128 |
Recorded Gains/(Losses) | 238 | 65 |
Assets | Loan sale commitments |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 1,673 | 1,659 |
Fair Value | 81 | 47 |
Recorded Gains/(Losses) | 48 | 21 |
Assets | IRLCs |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 9,227 | 3,649 |
Fair Value | 370 | 110 |
Recorded Gains/(Losses) | 235 | 51 |
Assets | LPCs |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 1,823 | 1,327 |
Fair Value | 18 | 17 |
Recorded Gains/(Losses) | 6 | 15 |
Assets | Forward MBS trades |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 1,239 | 762 |
Fair Value | 3 | 1 |
Recorded Gains/(Losses) | (3) | (1) |
Assets | Eurodollar futures |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 6 | 8 |
Fair Value | 0 | 0 |
Recorded Gains/(Losses) | 0 | 0 |
Liabilities |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 10,179 | 5,160 |
Derivative financial instruments | 50 | 31 |
Recorded Gains/(Losses) | 35 | 7 |
Liabilities | IRLCs |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional |  | 4 |
Derivative financial instruments |  | 0 |
Recorded Gains/(Losses) |  | 0 |
Liabilities | LPCs |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 55 | 212 |
Derivative financial instruments | 0 | 1 |
Recorded Gains/(Losses) | (2) | 1 |
Liabilities | Forward MBS trades |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 10,119 | 4,932 |
Derivative financial instruments | 50 | 30 |
Recorded Gains/(Losses) | 37 | 6 |
Liabilities | Eurodollar futures |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Outstanding Notional | 5 | 12 |
Derivative financial instruments | 0 | 0 |
Recorded Gains/(Losses) | $ 0 | $ 0 |

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- Definition Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 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 (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 + Details
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