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Supplemental Financial Information - Schedule of Components of Long-Term Investments (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Summary of Investment Holdings [Line Items]
Total	$ 951	$ 886
Equity securities
Summary of Investment Holdings [Line Items]
Total	633	553
Other
Summary of Investment Holdings [Line Items]
Total	$ 318	$ 333

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- Definition

The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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