v3.23.1
Document and Entity Information
Jun. 07, 2023
Document And Entity Information [Line Items]  
Entity Registrant Name MCKESSON CORP
Amendment Flag false
Entity Central Index Key 0000927653
Document Type 8-K
Document Period End Date Jun. 07, 2023
Entity Incorporation State Country Code DE
Entity File Number 1-13252
Entity Tax Identification Number 94-3207296
Entity Address, Address Line One 6555 State Hwy 161
Entity Address, City or Town Irving
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75039
City Area Code (972)
Local Phone Number 446-4800
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common stock, $0.01 par value
Trading Symbol MCK
Security Exchange Name NYSE
A 1.500 Notes Due 2025 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.500% Notes due 2025
Trading Symbol MCK25
Security Exchange Name NYSE
A 1.625 Notes Due 2026 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.625% Notes due 2026
Trading Symbol MCK26
Security Exchange Name NYSE
A 3.125 Notes Due 2029 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 3.125% Notes due 2029
Trading Symbol MCK29
Security Exchange Name NYSE