Derivative Instruments - Impact on Statements of Income, Fair Value Hedges (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Gains/(losses) recorded in income
Derivatives	$ 827	$ 3,503	$ (15,563)
Hedged items	177	(2,437)	15,400
Income statement impact	1,004	1,066	(163)
Income statement impact of excluded components
Amortization approach	(532)	(601)	(528)
Changes in fair value	1,046	921	(108)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	(115)	(134)	130
Interest rate
Gains/(losses) recorded in income
Derivatives	711	1,554	(14,352)
Hedged items	(65)	(1,248)	14,047
Income statement impact	646	306	(305)
Income statement impact of excluded components
Amortization approach	0	0	0
Changes in fair value	699	157	(262)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	0	0	0
Foreign exchange
Gains/(losses) recorded in income
Derivatives	(177)	722	(1,317)
Hedged items	402	(483)	1,423
Income statement impact	225	239	106
Income statement impact of excluded components
Amortization approach	(532)	(601)	(528)
Changes in fair value	225	239	106
OCI impact
Derivatives - Gains/(losses) recorded in OCI	(115)	(134)	130
Commodity
Gains/(losses) recorded in income
Derivatives	293	1,227	106
Hedged items	(160)	(706)	(70)
Income statement impact	133	521	36
Income statement impact of excluded components
Amortization approach	0	0	0
Changes in fair value	122	525	48
OCI impact
Derivatives - Gains/(losses) recorded in OCI	$ 0	$ 0	$ 0

Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Method, Net

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Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Changes in Fair Value, Net

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Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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Amount, before tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method.

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