Cover page Cover page
Cover page Cover page | Apr. 29, 2021 | Oct. 27, 2020 |
Cover page. [Abstract] | ||
Written Communications | false | |
Entity Address, Address Line One | 358 South Main Street | |
Entity Tax Identification Number | 13-3757370 | |
Entity Central Index Key | 0000920148 | |
Document Period End Date | Apr. 29, 2021 | |
Entity Registrant Name | LABORATORY CORPORATION OF AMERICA HOLDINGS | |
City Area Code | 336 | |
Local Phone Number | 229-1127 | |
Title of 12(b) Security | Common Stock , $0.10 par value | |
Trading Symbol | LH | |
Security Exchange Name | NYSE | |
Entity Emerging Growth Company | false | |
Amendment Flag | false | |
Entity Incorporation, State or Country Code | DE | |
Entity File Number | 1-11353 | |
Entity Address, City or Town | Burlington, | |
Entity Address, State or Province | NC | |
Entity Address, Postal Zip Code | 27215 | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Document Type | 8-K |