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Variable Interest Entities (FV Options for consolidated CDOs) (Details 3) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |
Debt [Abstract] |  |  |  |  |  |
Carrying value | [1] | $ 1,489 |  | $ 1,489 |  | $ 1,628
Estimated fair value of CLO debt |  | 1,500 |  | 1,500 |  | 1,700
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |
Syndicated loans [Abstract] |  |  |  |  |  |
Unpaid principal balance |  | 1,655 |  | 1,655 |  | 1,678
Excess unpaid principal over fair value |  | (170) |  | (170) |  | (81)
Fair value |  | 1,485 |  | 1,485 |  | 1,597
Fair value of loans more than 90 days past due |  | 12 |  | 12 |  | 4
Fair value of loans in nonaccrual status |  | 32 |  | 32 |  | 42
Difference between fair value and unpaid principal of loans more than 90 days past due, loans in nonaccrual status or both |  | 48 |  | 48 |  | 18
Debt [Abstract] |  |  |  |  |  |
Unpaid principal balance |  | 1,723 |  | 1,723 |  | 1,761
Excess unpaid principal over fair value |  | (234) |  | (234) |  | $ (133)
Net investment income [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |
Debt [Abstract] |  |  |  |  |  |
Total net gains (losses) recognized in net investment income related to changes in the fair value of financial assets and liabilities for which the fair value option was elected |  | $ (7) | $ (1) | $ (13) | $ (5) |
[1] | The carrying value of the CLOs’ debt is set equal to the fair value of the CLOs’ assets. The estimated fair value of the CLOs’ debt was $1.5 billion and $1.7 billion as of June 30, 2020 and December 31, 2019, respectively.

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: 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=118260190&loc=d3e13433-108611 + Details
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- Definition This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 + Details
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- Definition This item represents the aggregate fair value of loans held as assets that are 90 days or more past due for which the fair value option has been elected. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 + Details
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