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Accounting Policies - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Significant Accounting Policies [Line Items] |  |  |  |  |
Assets of managed investment entities | $ 28,084 |  | $ 28,084 |  | $ 28,931
Liabilities of managed investment entities | 24,017 |  | 24,017 |  | 23,919
Operating lease liability | $ 124 |  | $ 124 |  | $ 136
Operating lease liability, current, Statement of Financial Position | Other Liabilities |  | Other Liabilities |  | Other Liabilities
Operating lease right-of-use asset | $ 108 |  | $ 108 |  | $ 118
Weighted average common shares adjustment related to stock-based compensation (shares) | 200,000 | 600,000 | 200,000 | 600,000 |
Anti-dilutive potential common shares related to stock-based compensation plans (shares) | 0 | 0 | 0 | 0 |
Maturities of short term investments |  |  | 3 months |  |
New collateralized loan obligation temporary warehousing entities |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Assets of managed investment entities | $ 40 |  | $ 40 |  |
Liabilities of managed investment entities | $ 40 |  | $ 40 |  |

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