Derivatives and Hedging Instruments - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Derivative, notional amount	$ 14,235	$ 10,283
Designated as Hedging Instrument
Derivative [Line Items]
Fair value of embedded derivative	37	230
Not Designated as Hedging Instruments
Derivative [Line Items]
Fair value of embedded derivative	167	0
Not Designated as Hedging Instruments \| Cross-currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	792	2,003
Net investment hedges: \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	0	923
Net investment hedges: \| Designated as Hedging Instrument \| Cross-currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	350	373
Cash flow hedges: \| Foreign currency forward contracts
Derivative [Line Items]
Net gain (loss) to be reclassified within the next 12 months	6	(51)
Cash flow hedges: \| Cross-currency interest rate swaps
Derivative [Line Items]
Net gain (loss) to be reclassified within the next 12 months	50	13
Cash flow hedges: \| Interest rate locks
Derivative [Line Items]
Net gain (loss) to be reclassified within the next 12 months	6	4
Cash flow hedges: \| Designated as Hedging Instrument \| Cross-currency interest rate swaps
Derivative [Line Items]
Derivative, notional amount	5,625	2,972
Cash flow hedges: \| Designated as Hedging Instrument \| Interest rate locks
Derivative [Line Items]
Derivative, notional amount	$ 510	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

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- Definition

Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.

+ References

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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