| --- | --- | --- | --- | |------------------------------------------------------------------------------------------------|------------------|-----------------|---------------------| | | March 31, 2024 | (in millions) | December 31, 2023 | | Compensation-related liabilities | $ | 33 $ | 38 | | Postretirement benefit plan | | 35 | 36 | | Operating lease liability | | 56 | 55 | | Fair value of commodity derivative contracts | | 14 | 2 | | Premiums due on commodity derivative contracts | | 10 | 10 | | Conting ...