Railway Line Purchased, Length

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of operating lease expense. Excludes sublease income.

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- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Acquisition of Assets of Cincinnati Southern Railway (Details) $ in Millions		3 Months Ended		12 Months Ended
	Mar. 15, 2024 USD ($) mi	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Asset Acquisition [Line Items]
Lease expense		$ 5	$ 6
March 2024 Railway Purchase
Asset Acquisition [Line Items]
Number of miles railway line purchased \| mi	337
Personal property transaction amount	$ 1,700
Payments to acquire productive assets				$ 100