Derivatives and Hedge Accounting - Notional amounts of derivatives with related parties and third parties (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Gross Derivative Assets
Derivative asset, notional amount	$ 157,453	$ 152,304
Derivative assets net, fair value	10,029	7,250
Gross Derivative Liabilities
Notional Amount	115,173	76,430
Fair Value	7,091	5,268
Related Party
Gross Derivative Assets
Derivative asset, notional amount	0	2,126
Derivative assets net, fair value	0	21
Gross Derivative Liabilities
Notional Amount	0	0
Fair Value	0	0
Nonrelated Party
Gross Derivative Assets
Derivative asset, notional amount	157,453	150,178
Derivative assets net, fair value	10,029	7,229
Gross Derivative Liabilities
Notional Amount	115,173	76,430
Fair Value	$ 7,091	$ 5,268

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.

Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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