Derivative Financial Instruments and Risk Management - Location and Fair Value of Derivative Instruments Reported in the Consolidated Statements of Financial Position (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value
Derivative assets	$ 244	$ 285
Derivative liabilities	(198)	(220)
Designated derivatives
Derivatives, Fair Value
Derivative assets	222	257
Derivative liabilities	(119)	(141)
Designated derivatives \| Foreign exchange contracts
Derivatives, Fair Value
Derivative assets	179	207
Derivative liabilities	(91)	(73)
Designated derivatives \| Interest rate contracts
Derivatives, Fair Value
Derivative assets	43	50
Derivative liabilities	(28)	(68)
Undesignated derivatives
Derivatives, Fair Value
Derivative assets	22	28
Derivative liabilities	(79)	(79)
Undesignated derivatives \| Foreign exchange contracts
Derivatives, Fair Value
Derivative assets	22	28
Derivative liabilities	$ (79)	$ (79)

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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