Quarterly report pursuant to Section 13 or 15(d)

Leases - Other Quantitative Information (Details)

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Leases - Other Quantitative Information (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Operating Leases      
Weighted-average remaining lease term 6 years 9 months 18 days   6 years 3 months 18 days
Weighted-average discount rate [1] 5.00%   4.70%
Finance Leases      
Weighted-average remaining lease term 9 years 3 months 18 days   9 years 8 months 12 days
Weighted-average discount rate [1] 7.50%   7.70%
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 568 [2] $ 177  
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability 74 [3] $ 5  
Right-Of-Use Asset Obtained In Exchange For Operating Lease Liability, Reclassification From Finance Lease 15    
Right-Of-Use Asset Obtained In Exchange For Finance Lease Liability, Reclassification From Operating Lease $ 33    
[1] The weighted average discount rate is impacted by certain finance leases that commenced prior to the adoption of the current leasing standard under GAAP. In accordance with previous accounting guidance, the implied rate is based on the fair value of the underlying assets.
[2] Includes $15 million reclassified from finance leases to operating leases during the six months ended June 30, 2024, as a result of modifications of the underlying tug vessel leases.
[3] Includes $33 million reclassified from operating leases to finance leases during the six months ended June 30, 2024, as a result of modifications of the underlying tug vessel leases.