| Cover Page - USD ($) | 12 Months Ended | |
| Dec. 31, 2022 | Feb. 02, 2023 |
| Document Information [Line Items] | | |
| Amendment Flag | true | |
| Entity Central Index Key | 0000054480 | |
| Document Fiscal Year Focus | 2022 | |
| Document Fiscal Period Focus | FY | |
| Current Fiscal Year End Date | --12-31 | |
| Document Type | 10-K/A | |
| Document Annual Report | true | |
| Document Period End Date | Dec. 31, 2022 | |
| Document Transition Report | false | |
| Entity File Number | 1-4717 | |
| Entity Registrant Name | KANSAS CITY SOUTHERN | |
| Entity Incorporation, State or Country Code | DE | |
| Entity Tax Identification Number | 87-3883291 | |
| Entity Address, Address Line One | 427 West 12th Street | |
| Entity Address, City or Town | Kansas City | |
| Entity Address, State or Province | MO | |
| Entity Address, Postal Zip Code | 64105 | |
| City Area Code | 816 | |
| Local Phone Number | 983.1303 | |
| Entity Well-known Seasoned Issuer | No | |
| Entity Voluntary Filers | Yes | |
| Entity Current Reporting Status | No | |
| Entity Interactive Data Current | Yes | |
| Entity Filer Category | Non-accelerated Filer | |
| Entity Small Business | false | |
| Entity Emerging Growth Company | false | |
| Entity Shell Company | false | |
| ICFR Auditor Attestation Flag | true | |
| Entity Public Float | | $ 0 |
| Entity Common Stock, Shares Outstanding | | 100 |
| Documents Incorporated by Reference | None. | |
| Amendment Description | Kansas City Southern (“we,” “us,” “our,” the “Company,” or “KCS”) is filing this Amendment No. 1 on Form 10-K/A (“Form 10-K/A”) to amend the Annual Report on Form10-K for the fiscal year ended December 31, 2022 (“2022 Form10-K”), filed with the U.S. Securities and Exchange Commission (the “SEC”) on February 3, 2023, to include the information required by Items 10 through 14 of Part III of Form 10-K. This information was previously omitted from the 2022 Form 10-K in reliance on General Instruction G(3) to Form 10-K. This Form 10-K/A amends and restates in their entirety Items 10, 11, 12, 13 and 14 of Part III of the Original Form 10-K. In addition, as required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), certifications by the Company’s principal executive officer and principal financial officer are filed as exhibits to this Form 10-K/A under Item 15 of Part IV hereof. Because no financial statements have been included in this Form 10-K/A and this Form 10-K/A does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation S-K, paragraphs 3, 4 and 5 of the certifications have been omitted. We are not including the certifications under Section 906 of the Sarbanes-Oxley Act of 2002 as no financial statements are being filed with this Form 10-K/A. Except as described above, this Form 10-K/A does not modify or update disclosure in, or exhibits to, the 2022 Form10-K. Furthermore, this Form 10-K/A does not change any previously reported financial results, nor does it reflect events occurring after the date of the 2022 Form 10-K. Information not affected by this Form 10-K/A remains unchanged and reflects the disclosures made at the time the 2022 Form 10-K was filed. Accordingly, this Form 10-K/A should be read in conjunction with the 2022 Form 10-K and our other filings with the SEC. | |
| Auditor Name | PricewaterhouseCoopers LLP | |
| Auditor Firm ID | 238 | |
| Auditor Location | Kansas City, Missouri | |
