| Cover Page | Apr. 29, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Entity Registrant Name | Schneider National, Inc. |
| Entity Incorporation, State or Country Code | WI |
| Entity File Number | 001-38054 |
| Entity Tax Identification Number | 39-1258315 |
| Entity Address, Address Line One | 3101 South Packerland Drive |
| Entity Address, City or Town | Green Bay |
| Entity Address, State or Province | WI |
| Entity Address, Postal Zip Code | 54313 |
| City Area Code | 920 |
| Local Phone Number | 592-2000 |
| Title of 12(b) Security | Class B common stock, no par value |
| Trading Symbol | SNDR |
| Security Exchange Name | NYSE |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001692063 |
| Amendment Flag | true |
| Document Period End Date | Apr. 29, 2024 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Description | Explanatory Note: This Form 8-K/A amends the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on May 1, 2024 solely to include the missing signature of the Company’s Executive Vice President, General Counsel and Corporate Secretary and to fix the header for Item 5.03. No additional changes to the Form 8-K and the exhibits thereto as originally filed have been made. |
