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Accumulated Other Comprehensive Income (Loss) ("AOCI") - Components of AOCI (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2022
Sep. 30, 2021
Accumulated other comprehensive income (loss), Beginning balance     $ (147)       $ (147)  
Amounts reclassified from accumulated other comprehensive income (loss)             10  
Net current-period other comprehensive income (loss) $ (11) $ 1 2 $ (4) $ 2 $ 1    
Accumulated other comprehensive income (loss), Ending balance (155)           (155)  
Accumulated Other Comprehensive Income (Loss) [Member]                
Accumulated other comprehensive income (loss), Beginning balance     (147)     (145) (147) $ (145)
Other comprehensive income (loss) before reclassifications             (18) (1)
Amounts reclassified from accumulated other comprehensive income (loss)             10  
Net current-period other comprehensive income (loss) (11) $ 1 $ 2 (4) $ 2 $ 1 (8) (1)
Accumulated other comprehensive income (loss), Ending balance $ (155)     $ (146)     $ (155) $ (146)