Supplemental Financial Information - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 6,110	$ 6,318
Restricted cash	94	94
Total cash, cash equivalents, and restricted cash	$ 6,204	$ 6,412	$ 6,889	$ 6,031

Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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