Derivative Instruments - Impact on Statements of Income, Fair Value Hedges (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Gains/(losses) recorded in income
Derivatives	$ (211)	$ (7,936)
Hedged items	428	7,816
Income statement impact	217	(120)
Income statement impact of excluded components
Amortization approach	(172)	(65)
Changes in fair value	157	(105)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	(28)	145
Interest rate
Gains/(losses) recorded in income
Derivatives	1,171	(7,070)
Hedged items	(1,103)	6,981
Income statement impact	68	(89)
Income statement impact of excluded components
Amortization approach	0	0
Changes in fair value	9	(66)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	0	0
Foreign exchange
Gains/(losses) recorded in income
Derivatives	158	(690)
Hedged items	(94)	688
Income statement impact	64	(2)
Income statement impact of excluded components
Amortization approach	(172)	(65)
Changes in fair value	64	(2)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	(28)	145
Commodity
Gains/(losses) recorded in income
Derivatives	(1,540)	(176)
Hedged items	1,625	147
Income statement impact	85	(29)
Income statement impact of excluded components
Amortization approach	0
Changes in fair value	84	(37)
OCI impact
Derivatives - Gains/(losses) recorded in OCI	$ 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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