Assets and Liabilities Measured at Fair Value - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Assets and liabilities measured at fair value
Cash equivalents	$ 820	$ 726
Debt	354	219
Quoted prices in active markets for identical assets (Level 1)
Assets and liabilities measured at fair value
Cash equivalents	820	726
Significant other observable inputs (Level 2)
Assets and liabilities measured at fair value
Debt	$ 354	$ 219