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Derivative Financial Instruments - Summary of Cash Collateral and Letters of Credit (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash collateral posted	$ 1,121	$ 635
Letters of credit posted	769	890
Cash collateral held	58	49
Letters of credit held	120	91
Additional collateral required in the event of a credit downgrade below investment grade (at BB+/Ba1)	$ 2,254	$ 1,949

X

- Definition

Incremental collateral amount required to be provided related to its financial instruments, including derivatives, non-derivatives, normal purchase normal sales contracts and applicable payables and receivables, if the credit rating is downgraded below investment grade.

+ References

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

+ References

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Amount of obligation to return securities collateral under master netting arrangements that have not been offset against derivative assets.

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