Cash, Cash Equivalents and Marketable Securities - Schedule of Fair Values of Our Cash, Cash Equivalents and Marketable Securities by Location in Consolidated Balance Sheets and Contractual Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Cash, Cash Equivalents and Marketable Securities [Abstract]
Cash and cash equivalents	$ 222	$ 150
Marketable securities	759	828
Long-term marketable securities	29	14
Total cash, cash equivalents and marketable securities	$ 1,010	$ 992