Derivatives - Schedule of Pretax Effects of Derivative Financial Instruments Designated or Previously Designated as Effective Hedges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in OCI (effective portion)	$ 53	$ (26)
Reclassified from AOCL to Income	(4)	9
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in OCI (effective portion)	0	0
Reclassified from AOCL to Income	(1)	(1)
Foreign currency contracts
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in OCI (effective portion)	5	(5)
Reclassified from AOCL to Income	(3)	10
Cross-currency swaps
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in OCI (effective portion)	48	(21)
Reclassified from AOCL to Income	$ 0	$ 0