Derivative Instruments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Realized and unrealized losses on derivatives classified as cash flow hedges recorded in other comprehensive income (loss)	$ 461	$ 242
Estimated loss to be reclassified from other comprehensive income (loss) into earnings	172
Fair value of derivatives under collateral agreements in a net liability position	2,600
Collateral posted by company netted against net liability position	2,300
Net investment hedges
Derivative [Line Items]
Non-derivative debt instruments	$ 1,300	$ 1,300