Supplemental Financial Information - Schedule of Components of Long-Term Investments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Summary of Investment Holdings [Line Items]
Total	$ 1,111	$ 918
Equity securities
Summary of Investment Holdings [Line Items]
Total	747	597
Other
Summary of Investment Holdings [Line Items]
Total	$ 364	$ 321

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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+ Details