| Cover Page Document | Oct. 30, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Oct. 30, 2019 |
| Entity Registrant Name | Motorola Solutions, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-7221 |
| Entity Tax Identification Number | 36-1115800 |
| Entity Address, Address Line One | 500 W. Monroe Street |
| Entity Address, Postal Zip Code | 60661 |
| Entity Address, City or Town | Chicago, |
| Entity Address, State or Province | IL |
| City Area Code | 847 |
| Local Phone Number | 576-5000 |
| Title of 12(b) Security | Common Stock; |
| Trading Symbol | MSI |
| Security Exchange Name | NYSE |
| 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 | 0000068505 |
| Amendment Flag | false |
