Other Nonoperating (Income) and Expenses, Net	12 Months Ended
Dec. 31, 2020
Other Income And Expenses [Abstract]
Other Nonoperating (Income) and Expenses, Net	Note T: Other Nonoperating (Income) and Expenses, Net For the year ended December 31, 2020, other nonoperating (income) and expenses, net, included $11.4 million of third-party railroad track maintenance expense. Additionally, other nonoperating (income) and expenses, net, for the year ended December 31, 2020 reflects an $8.1 million reduction in pension expense compared with 2019. For the year ended December 31, 2019, other nonoperating (income) and expenses, net, included a $15.7 million ($12.0 million net of tax) out-of-period correction of a Company-identified overstatement of the investment balance for a nonconsolidated equity affiliate.

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 http://asc.fasb.org/extlink&oid=120395209&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 http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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