Other Nonoperating Income, Net	12 Months Ended
Dec. 31, 2022
Other Income and Expenses [Abstract]
Other Nonoperating Income, Net	Note T: Other Nonoperating Income, Net Other nonoperating income, net, for the year ended December 31, 2022 included a $12.0 million pretax gain related to the repurchase of the Company's debt, $8.2 million of third-party railroad track maintenance expense and a $13.3 million increase in interest income compared with 2021 primarily related to the Company's restricted investments. For the year ended December 31, 2021, other nonoperating income, net, included $7.7 million of third-party railroad track maintenance expense and reflected a $19.4 million reduction in pension expense compared with 2020. Other nonoperating income, net, for the year ended December 31, 2020 included $11.4 million of third-party railroad track maintenance expense.

The entire disclosure for the components of non-operating income or non-operating expense, including, but not limited to, amounts earned from dividends, interest on securities, gain (loss) on securities sold, equity earnings of unconsolidated affiliates, gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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