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Leases - Balance Sheet Summary (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Pipeline and storage    
Operating Leases    
ROU assets, net $ 11 $ 12
Lease liability 11 12
Finance Leases    
ROU assets, net 16 17
Lease liability 28 28
Railcars    
Operating Leases    
ROU assets, net 12 12
Lease liability 12 12
Finance Leases    
ROU assets, net 0 0
Lease liability 0 0
Real estate and other    
Operating Leases    
ROU assets, net 30 29
Lease liability 27 25
Finance Leases    
ROU assets, net 13 14
Lease liability $ 15 $ 16