| Cover | Dec. 18, 2020 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 18, 2020 |
| Entity File Number | 001-13545 |
| Entity Registrant Name | PROLOGIS, INC. |
| Entity Central Index Key | 0001045609 |
| Entity Tax Identification Number | 94-3281941 |
| Entity Incorporation, State or Country Code | MD |
| Entity Address, Address Line One | Pier 1 |
| Entity Address, Address Line Two | Bay 1 |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94111 |
| City Area Code | 415 |
| Local Phone Number | 394-9000 |
| 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] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | PLD |
| Security Exchange Name | NYSE |
| Prologis L P [Member] | |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 18, 2020 |
| Entity File Number | 001-14245 |
| Entity Registrant Name | PROLOGIS, L.P. |
| Entity Central Index Key | 0001045610 |
| Entity Tax Identification Number | 94-3285362 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | Pier 1 |
| Entity Address, Address Line Two | Bay 1 |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94111 |
| City Area Code | 415 |
| Local Phone Number | 394-9000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Prologis L P [Member] | Notes 3. 000 Percent Due 2022 [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 3.000% Notes due 2022 |
| Trading Symbol | PLD/22 |
| Security Exchange Name | NYSE |
| Prologis L P [Member] | Notes 3. 375 Percent Due 2024 [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 3.375% Notes due 2024 |
| Trading Symbol | PLD/24 |
| Security Exchange Name | NYSE |
| Prologis L P [Member] | Notes 3. 000 Percent Due 2026 [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 3.000% Notes due 2026 |
| Trading Symbol | PLD/26 |
| Security Exchange Name | NYSE |
| Prologis L P [Member] | Notes 2. 250 Percent Due 2029 [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2.250% Notes due 2029 |
| Trading Symbol | PLD/29 |
| Security Exchange Name | NYSE |
