Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Jul. 02, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The condensed consolidated financial statements as of July 2, 2022 and for the three and six months ended July 2, 2022 and July 3, 2021 include, in the opinion of management, all adjustments (consisting of normal recurring adjustments and reclassifications) necessary to state fairly the Condensed Consolidated Balance Sheets, Statements of Operations, Statements of Comprehensive Income, Statements of Stockholders' Equity (Deficit), and Statements of Cash Flows of Motorola Solutions, Inc. (“Motorola Solutions” or the “Company”) for all periods presented. The Company operates on a 52-week fiscal year, with each fiscal year ending on December 31. With respect to each fiscal quarter, the Company operates on a 13-week fiscal quarter, with all fiscal quarters ending on a Saturday. Certain information and footnote disclosures normally included in financial statements prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Form 10-K for the year ended December 31, 2021 (the "Form 10-K"). The results of operations for the three and six months ended July 2, 2022 are not necessarily indicative of the operating results to be expected for the full year. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In August 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-06, "Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40) - Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity," which simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments. The new guidance removes the separation models for convertible debt with a cash conversion feature or a beneficial conversion feature. In addition, the new standard requires the application of the if-converted method for calculating diluted earnings per share and the treasury stock method will be no longer available. The Company adopted ASU No. 2020-06 on January 1, 2022, using the modified retrospective method of adoption. As a result of the adoption of this ASU, the Company's $1 billion of 1.75% senior convertible notes due 2024 issued to Silver Lake Partners (the "Senior Convertible Notes") are accounted as a single liability measured at its amortized cost, given the embedded conversion feature does not require bifurcation and recognition as a derivative. Upon adoption of this ASU, amounts previously recognized in additional paid-in capital from the original embedded conversion feature of $10 million were reclassified to retained earnings. The Company uses the if-converted method as required under ASU No. 2020-06 to determine the dilutive effect of the convertible instrument. Refer to Note 4, "Other Financial Data" to our condensed consolidated financial statements included in this Part I, Item 1 of this Form 10-Q for the effect of the Senior Convertible Notes on diluted earnings per common share. In October 2021, the FASB issued ASU No. 2021-08, "Business Combinations (Topic 805) - Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, "which requires companies to recognize and measure contract assets and contract liabilities relating to contracts with customers that are acquired in a business combination in accordance with ASC Topic 606. Under current U.S. GAAP, an acquirer generally recognizes assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers, at fair value on the acquisition date. ASU No. 2021-08 results in the acquirer recording acquired contract assets and liabilities on the same basis that would have been recorded by the acquiree before the acquisition under ASC Topic 606. The ASU is effective for fiscal years beginning after December 15, 2022, with early adoption permitted. The Company adopted this ASU as of January 1, 2022 on a prospective basis and the adoption of this standard did not have a material impact on the Company's financial statements and disclosures. The Company anticipates that this adoption will generally result in the Company recognizing larger contract liabilities in connection with business combinations. In November 2021, the FASB issued ASU No. 2021-10, "Government Assistance (Topic 832) – Disclosures by Business Entities about Government Assistance." This ASU requires disclosures that are expected to increase the transparency of transactions with a governmental entity accounted for by applying a grant or contribution accounting model by analogy, including disclosures around: (1) the types of transactions, (2) the accounting for those transactions, and (3) the effect of those transactions on an entity’s financial statements. The ASU was effective for the Company on January 1, 2022, including interim periods, with early adoption permitted. The Company adopted this ASU as of January 1, 2022 on a prospective basis, and the adoption of this standard did not have a material impact on the Company's financial statements and disclosures.