v3.22.4
Fair Value Measurements - Recurring Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of items measured at fair value on a recurring basis that used significant unobservable inputs (Level 3)      
Beginning balance $ 30 $ 34 $ 46
Total gains or losses included in earnings 0 0 0
Total gains or losses included in other comprehensive income 0 0 0
Purchases and issuances 0 0 10
Sales and settlements (3) (4) (22)
Transfers in and/or out of level 3 0 0 0
Ending balance 27 30 34
Change in unrealized gains or losses for the period included in earnings for securities held at the end of the reporting period $ 0 $ 0 $ 0