Fair Value Measurements - Gains (Losses) on Interest Rate Swaps (Details) - Interest rate swap - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net income attributable to L&W	$ (1)	$ (7)	$ 27
Interest income (expense) recorded related to interest rate swap contracts	$ 17	$ 15	$ (7)

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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