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Commitments and Contingencies - Other Commitments and Contingencies (Details)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
location
Dec. 31, 2023
USD ($)
location
Loss Contingencies [Line Items]    
Environmental loss contingency, statement of financial position, extensible enumeration, not disclosed flag Consolidated Balance Sheets Consolidated Balance Sheets
Number of locations with one or more subsidiaries in conjunction with other parties identified as potentially responsible parties | location 8  
Employees covered by collective bargaining agreements (as a percent) 80.00%  
Other Environmental Claims    
Loss Contingencies [Line Items]    
Environmental matters liabilities | $ $ 57 $ 60
Current environmental liability | $ $ 15 $ 15
Number of sites - remediation locations and projects | location 75 81
Number of sites - representative sample | location 21  
Liability associated with those sites | $ $ 47  
Environmental locations representative sample liability payout period, in years 5 years