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Revenues - Revenues Disaggregated by Lines of Business (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 3,815 | $ 2,990 | $ 7,228 | $ 5,803
Total Merchandise |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,101 | 1,903 | 4,022 | 3,721
Chemicals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 666 | 606 | 1,284 | 1,186
Agricultural and Food Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 412 | 370 | 799 | 719
Automotive |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 268 | 216 | 495 | 452
Forest Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 251 | 233 | 479 | 453
Metals and Equipment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 216 | 204 | 413 | 390
Minerals |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 170 | 152 | 314 | 277
Fertilizers |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 118 | 122 | 238 | 244
Intermodal |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 602 | 511 | 1,129 | 979
Coal |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 651 | 423 | 1,184 | 807
Trucking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 259 | 0 | 489 | 0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 202 | $ 153 | $ 404 | $ 296

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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