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Business Combinations - Narrative (Details) $ in Millions |  |  | 3 Months Ended | 12 Months Ended | 22 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 01, 2022 USD ($) mi | Jul. 01, 2021 USD ($) terminalAndFacility | Dec. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2023 mi
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of rail route miles | mi |  |  |  |  |  |  | 20,000
Pan Am Systems, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business combination, consideration transferred | $ 600 |  |  |  |  |  |
Business combination, consideration transferred, equity interests issued and issuable | 422 |  |  |  |  |  |
Cash paid for acquisition | 178 |  |  |  |  |  |
Deposit paid to acquire business classified as other investing activities |  |  | $ 30 |  |  |  |
Properties acquired | $ 600 |  |  |  |  |  |
Acquisition related costs |  |  |  | $ 22 | $ 10 | $ 32 |
Pan Am Systems, Inc. | Pan Am Systems, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of rail route miles | mi | 1,200 |  |  |  |  |  |
Number of partial interests in rail route miles (more than) | mi | 600 |  |  |  |  |  |
Quality Carriers, Inc. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash paid for acquisition |  | $ 544 |  |  |  |  |
Cash and cash equivalents acquired |  | 3 |  |  |  |  |
Properties acquired |  | 225 |  |  |  |  |
Acquisition related costs |  | $ 17 |  |  |  |  |
Quality Carriers, Inc. | Quality Carriers, Inc. | United States, Canada and Mexico |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of terminals and facilities (over) | terminalAndFacility |  | 100 |  |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479405/805-10-25-23 + Details
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