Number Of Railroads Owning Joint Railcar Pooling Company

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Amount of receivables owed to an entity that is affiliated with the reporting entity by means of direct or indirect ownership, which are usually due after one year (or one business cycle, if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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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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Investments (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
Investments (Details) $ in Millions	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) railroad	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Schedule of Investments [Line Items]
Number of railroads \| railroad			8
Conrail, Economic
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	58.00%		58.00%
Conrail, Voting
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%
Conrail Inc
Schedule of Investments [Line Items]
Equity method investments	$ 1,600		$ 1,600		$ 1,500
Expenses from transactions with related party	36	$ 37	74	$ 71
Equity in the earnings of investee	11	14	25	28
Due to affiliate, noncurrent	$ 534		$ 534		$ 534
Due to affiliate, average interest rate			1.31%		1.31%
TTX Company
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	19.65%		19.65%
Expenses from transactions with related party	$ 66	61	$ 130	124
Equity in the earnings of investee	$ 11	$ 14	$ 21	$ 31