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Business Combinations - Allocation of Total Consideration to Fair Value of Assets and Liabilities of Quality Carriers (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Jun. 01, 2022 | Dec. 31, 2021 | Jul. 01, 2021
--- | --- | --- | --- | --- | ---
Assets Acquired: |  |  |  |  |
Goodwill | $ 325 | $ 319 |  | $ 276 |
Pan-Am |  |  |  |  |
Assets Acquired: |  |  |  |  |
Accounts Receivable, net |  |  | $ 46 |  |
Properties and Equipment, net |  |  | 600 |  |
Goodwill |  |  | 17 |  |
Intangible Assets |  |  | 90 |  |
Other Assets |  |  | 11 |  |
Total Assets Acquired |  |  | 764 |  |
Liabilities Assumed: |  |  |  |  |
Accounts Payable and Accrued Liabilities |  |  | 32 |  |
Deferred Tax Liabilities |  |  | 75 |  |
Other Long-term Liabilities |  |  | 57 |  |
Total Liabilities Assumed |  |  | 164 |  |
Fair Value of Assets Acquired, Net of Liabilities Assumed: |  |  | $ 600 |  |
Quality Carriers |  |  |  |  |
Assets Acquired: |  |  |  |  |
Cash and Cash Equivalents |  |  |  |  | $ 3
Accounts Receivable, net |  |  |  |  | 113
Properties and Equipment, net |  |  |  |  | 225
Goodwill |  |  |  |  | 213
Intangible Assets |  |  |  |  | 180
Other Assets |  |  |  |  | 9
Total Assets Acquired |  |  |  |  | 743
Liabilities Assumed: |  |  |  |  |
Accounts Payable and Accrued Liabilities |  |  |  |  | 48
Finance Lease Obligations and Notes Payable |  |  |  |  | 68
Casualty, Environmental and Other Reserves |  |  |  |  | 62
Other Long-term Liabilities |  |  |  |  | 21
Total Liabilities Assumed |  |  |  |  | 199
Fair Value of Assets Acquired, Net of Liabilities Assumed: |  |  |  |  | $ 544

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