Derivative Instruments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivatives designated as cash flow hedges gain (loss), amount expected to be reclassified to future net income (loss), net of tax	$ 1,445	$ 2,003	$ 1,789	$ 2,025	$ 1,792	$ 2,211
Year by which all forecasted transactions associated with qualifying cash flow hedges are expected to occur	2057
Derivatives designated as cash flow hedges gain (loss), amount expected to be reclassified to net income in the next 12 months, net of tax	$ 144
Amount reclassified to net income (loss) in connection with forecasted transactions that were no longer considered probable of occurring	$ 5	$ 4