Derivatives and Other Financial Instruments - Schedule of Carrying Values and Fair Values of Other Financial Instruments (Detail) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivative [Line Items]
Short-term borrowings	$ 8	$ 50
Carrying Value [Member]
Derivative [Line Items]
Cash and cash equivalents	1,514	1,138
Restricted cash	88	96
Short-term borrowings	8	50
Long-term debt due within one year	75	75
Long-term debt, less amount due within one year	2,574	2,470
Fair Value [Member]
Derivative [Line Items]
Cash and cash equivalents	1,514	1,138
Restricted cash	88	96
Short-term borrowings	8	50
Long-term debt due within one year	75	75
Long-term debt, less amount due within one year	$ 2,644	$ 2,499