Document and Entity Information
Document and Entity Information | Feb. 01, 2021 |
Entity Listings [Line Items] | |
Document Type | 8-K |
Amendment Flag | false |
Document Period End Date | Feb. 1, 2021 |
Entity Registrant Name | Merck & Co., Inc. |
Entity Incorporation, State or Country Code | NJ |
Entity File Number | 001-06571 |
Entity Tax Identification Number | 22-1918501 |
Entity Address, Address Line One | 2000 GALLOPING HILL ROAD |
Entity Address, City or Town | KENILWORTH |
Entity Address, State or Province | NJ |
Entity Address, Postal Zip Code | 07033 |
City Area Code | 908 |
Local Phone Number | 740-4000 |
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 | 0000310158 |
Common Stock [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | Common Stock ($0.50 par value) |
Trading Symbol | MRK |
Security Exchange Name | NYSE |
1.125% Notes due 2021 [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | 1.125% Notes due 2021 |
Trading Symbol | MRK/21 |
Security Exchange Name | NYSE |
0.500% Notes due 2024 [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | 0.500% Notes due 2024 |
Trading Symbol | MRK24 |
Security Exchange Name | NYSE |
1.875% Notes due 2026 [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | 1.875% Notes due 2026 |
Trading Symbol | MRK/26 |
Security Exchange Name | NYSE |
2.500% Notes due 2034 [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | 2.500% Notes due 2034 |
Trading Symbol | MRK/34 |
Security Exchange Name | NYSE |
1.375% Notes due 2036 [Member] | |
Entity Listings [Line Items] | |
Title of 12(b) Security | 1.375% Notes due 2036 |
Trading Symbol | MRK36A |
Security Exchange Name | NYSE |