Other Financial Instruments - Schedule of Carrying Values and Fair Values of Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Carrying value
Derivative [Line Items]
Available-for-sale securities	$ 18	$ 25
Held-to-maturity investments	5	0
Long-term debt, less amount due within one year	2,859	3,309
Fair value
Derivative [Line Items]
Available-for-sale securities	18	25
Held-to-maturity investments	5	0
Long-term debt, less amount due within one year	$ 2,919	$ 3,298

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details

- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

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+ Details

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

+ Details