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Railway Operating Revenues - Schedule of Account Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	$ 945	$ 848
Customer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	740	629
Non-customer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable – net	$ 205	$ 219

X

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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+ References

No definition available.

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