Financial Instruments, Hedging Activities and Fair Value Measurements (Long-Term Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Long-term debt	$ 6,831	$ 7,297
Long-term debt, fair value	6,578	7,215
Finance lease, liability	6	7
Short-term debt	$ 4	$ 4

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

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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

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+ Details

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References + Details