Derivative Instruments - Summary of Effect of Fair Value and Cash Flow Hedge Accounting on Consolidated Statement of Income (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instrument Detail [Abstract]
Gains (losses) recognized in earnings related discontinuance of cash flow hedges	$ (11)	$ (10)	$ (18)	$ (21)
OCI, Cash Flow Hedge, Reclassification for Discontinuance, Statement of Income or Comprehensive Income [Extensible Enumeration]	Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax