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Accrued Liabilities and Other Long-Term Liabilities
 6 Months Ended
Jun. 30, 2025
Payables and Accruals [Abstract]  
Accrued Liabilities and Other Long-Term Liabilities Accrued Liabilities and Other Long-Term Liabilities
Accrued liabilities consist of the following:
June 30, 2025December 31, 2024
(In millions)
Wage and other employee-related liabilities$127 $85 
Environmental credit obligations
115 17 
Accrued interest expense59 38 
Accrued taxes other than income30 28 
Precious metal financing47 32 
Environmental liabilities (1)
22 27 
Right-of-use financing lease liabilities13 11 
Derivatives11 2 
Other125 137 
Total accrued liabilities$549 $377 

Other long-term liabilities consist of the following:
June 30, 2025December 31, 2024
(In millions)
Environmental liabilities (1)
$165 $163 
Asset retirement obligations69 66 
Right-of-use financing lease liabilities70 71 
Other130 141 
Total other long-term liabilities$434 $441 
(1)    Environmental liability accruals include remediation and monitoring costs expected to be incurred over an extended period of time. Estimated liabilities, which are subject to change when the results of ongoing investigations become known, are considered probable and can be reasonably estimated. Environmental remediation expenses were $3 million and $1 million for the three months ended June 30, 2025 and 2024, respectively, and $2 million for each of the six months ended June 30, 2025 and 2024.