Derivatives and Hedging Instruments - Narrative (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Derivative [Line Items]
Derivative, notional amount	$ 12,471,000,000	$ 10,278,000,000
Fair value of embedded derivative	200,000,000	213,000,000
Net investment hedges | Net investment hedges:
Derivative [Line Items]
Derivative, notional amount	1,600,000,000	1,000,000,000
Net investment hedges | Net investment hedges: | Cross-currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	771,000,000	1,986,000,000
Cash flow hedges | Foreign currency forward contracts
Derivative [Line Items]
Net gain (loss) to be reclassified within the next 12 months	(71,000,000)	38,000,000
Cash flow hedges | Cross-currency interest rate swaps
Derivative [Line Items]
Net gain (loss) to be reclassified within the next 12 months	8,000,000	13,000,000
Cash flow hedges | Interest rate locks
Derivative [Line Items]
Derivative, notional amount	0	0
Net gain (loss) to be reclassified within the next 12 months	4,000,000	3,000,000
Cash flow hedges | Net investment hedges: | Cross-currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	$ 1,030,000,000	$ 1,030,000,000