Financial Instruments, Derivatives and Fair Value Measures - Schedule of Carrying Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Long-term investment securities	$ 1,111	$ 918
Receivable position	242	108
(Payable) position	(878)	(905)
Equity securities
Derivative [Line Items]
Long-term investment securities	747	597
Carrying Value
Derivative [Line Items]
Total Long-term Debt	(32,608)	(12,929)
Carrying Value \| Foreign Currency Forward Exchange Contracts
Derivative [Line Items]
Receivable position	242	108
(Payable) position	(198)	(297)
Carrying Value \| Interest Rate Hedge Contracts
Derivative [Line Items]
Receivable position	0	0
(Payable) position	(112)	(19)
Carrying Value \| Equity securities
Derivative [Line Items]
Long-term investment securities	747	597
Carrying Value \| Other
Derivative [Line Items]
Long-term investment securities	364	321
Fair Value
Derivative [Line Items]
Total Long-term Debt	(31,753)	(12,772)
Fair Value \| Foreign Currency Forward Exchange Contracts
Derivative [Line Items]
Receivable position	242	108
(Payable) position	(198)	(297)
Fair Value \| Interest Rate Hedge Contracts
Derivative [Line Items]
Receivable position	0	0
(Payable) position	(112)	(19)
Fair Value \| Equity securities
Derivative [Line Items]
Long-term investment securities	747	597
Fair Value \| Other
Derivative [Line Items]
Long-term investment securities	$ 364	$ 321

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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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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