Fair Value Measurements and Financial Instruments - Schedule of Cumulative Basis Adjustments for Fair Value Hedges (Details) - Long-term Debt - Fair Value Hedges - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Carrying amount of hedged liabilities	$ 18,354	$ 18,863
Cumulative amount of fair value hedging adjustment included in the carrying amount of the hedged liabilities	(4,681)	(5,192)
Cumulative amount of fair value hedging adjustment remaining for which hedge accounting has been discontinued	$ 232	$ 281

Sum as of the balance sheet date of the (a) fair values of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and (b) the carrying amounts of the liabilities arising from financial instruments or contracts used to mitigate a specified risk (hedge), and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk, remaining after discontinued hedge. Excludes cumulative basis adjustment related to foreign exchange risk.

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Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk. Excludes cumulative basis adjustment related to foreign exchange risk.

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