| Document and Entity Information | Jun. 07, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | This Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K filed by Yellow Corporation (the “Company”) on June 7, 2021 with the U.S. Securities and Exchange Commission (the “Original Form 8-K”). This Amendment corrects certain operating metrics furnished in a press release attached to the Original Form 8-K regarding the percent change in 2021 from 2020 for less-than-truckload (“LTL”) Revenue per hundredweight and LTL Revenue per shipment for May and QTD. Except as provided herein, the disclosures made in the Original Form 8-K remain unchanged. |
| Document Period End Date | Jun. 7, 2021 |
| Entity Registrant Name | Yellow Corporation |
| Entity Central Index Key | 0000716006 |
| Entity Emerging Growth Company | false |
| Entity File Number | 0-12255 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 48-0948788 |
| Entity Address, Address Line One | 10990 Roe Avenue |
| Entity Address, City or Town | Overland Park |
| Entity Address, State or Province | KS |
| Entity Address, Postal Zip Code | 66211 |
| City Area Code | 913 |
| Local Phone Number | 696-6100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value pershare |
| Trading Symbol | YELL |
| Security Exchange Name | NASDAQ |
