|**Significant Accounting Policies and Recent Accounting Standards** | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    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|**Accounting Policies [Abstract]**                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|Significant Accounting Policies and Recent Accounting Standards     | NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)Significant Accounting Policies and Recent Accounting StandardsBasis of PresentationThe accompanying Condensed Consolidated Financial Statements (Unaudited) include the accounts of Harris Corporation and its consolidated subsidiaries. As used in these Notes to Condensed Consolidated Financial Statements (Unaudited) (these “Notes”), the terms “Harris,” “Company,” “we,” “our” and “us” refer to Harris Corporation and its consolidated subsidiaries. Intracompany transactions and accounts have been eliminated in consolidation. The accompanying Condensed Consolidated Financial Statements (Unaudited) have been prepared by Harris, without an audit, in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, such interim financial statements do not include all information and footnotes necessary for a complete presentation of financial position, results of operations and cash flows in conformity with GAAP for annual financial statements. In the opinion of management, such interim financial statements reflect all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of our financial position, results of operations and cash flows for the periods presented therein. The results for thesecondquarter and first two quarters of fiscal2017are not necessarily indicative of the results that may be expected for the full fiscal year or any subsequent period. The balance sheet atJuly 1, 2016has been derived from our audited financial statements, but does not include all of the information and footnotes required by GAAP for annual financial statements. We provide complete, audited financial statements in our Annual Report on Form 10-K, which includes information and footnotes required by the rules and regulations of the SEC. The information included in this Quarterly Report on Form 10-Q (this “Report”) should be read in conjunction with the Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Consolidated Financial Statements and accompanying Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year endedJuly 1, 2016(our “Fiscal2016Form 10-K”).In the second quarter of fiscal 2017, we entered into a definitive agreement to sell our Harris CapRock Communications commercial business (“CapRock”). CapRock was formerly part of our Critical Networks segment and is reported as discontinued operations in this Report. As a result, our historical financial results have been restated to account for CapRock as discontinued operations for all periods presented in this Report. Except for disclosures related to our cash flows, or unless otherwise specified, disclosures in the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes relate solely to our continuing operations.On January 1, 2017, we completed the sale of CapRock. SeeNote S — Subsequent Eventsin these Notes for additional information.SeeNote B — Discontinued Operationsin these Notes for additional information regarding discontinued operations.Amounts contained in this Report may not always add to totals due to rounding.Use of EstimatesThe preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes and related disclosures. These estimates and assumptions are based on experience and other information available prior to issuance of the accompanying Condensed Consolidated Financial Statements (Unaudited) and these Notes. Materially different results can occur as circumstances change and additional information becomes known.Restructuring and Integration ChargesWe record restructuring charges for sales or terminations of product lines, closures or relocations of business activities, changes in management structure, and fundamental reorganizations that affect the nature and focus of operations. Such changes include termination benefits, contract termination costs and costs to consolidate facilities or relocate employees. We record these charges at their fair value when incurred. In cases where employees are required to render service until they are terminated in order to receive the termination benefits and will be retained beyond the minimum retention period, we record the expense ratably over the future service period.In fiscal 2016, we recorded restructuring charges of$143 millionfor workforce reductions and integration charges as a result of our acquisition of Exelis in the fourth quarter of fiscal 2015, including consolidation of facilties and other costs. These charges are included as a component of the “Cost of product sales and services” and “Engineering, selling and administrative expenses” line items in our Consolidated Statement of Income in our Fiscal 2016 Form 10-K. Liabilities associated with these and previous restructuring actions were$44 millionatDecember 30, 2016and$53 millionat July 1, 2016. The majority of the remaining liabilities as ofDecember 30, 2016will be paid within the next twelve months.Adoption of New Accounting StandardsIn the first quarter of fiscal 2017, we adopted an accounting standard issued by the Financial Accounting Standards Board (“FASB”) that changed the accounting for certain aspects of stock options and other share-based compensation. This accounting standard requires companies to recognize excess tax benefits or expenses related to the vesting or settlement of employee share-based awards (i.e., the difference between the actual tax benefit realized and the tax benefit initially recognized for financial reporting purposes) as income tax benefit or expense in our Condensed Consolidated Statement of Income (Unaudited). Prior to adoption of this accounting standard, we were required to recognize these amounts directly in our Condensed Consolidated Balance Sheet (Unaudited) as additional paid-in capital. This accounting standard also requires classification of cash flows resulting from excess tax benefits or expenses related to employee share-based awards as cash flows from operating activities in our Condensed Consolidated Statement of Cash Flows (Unaudited). Prior to adoption of this accounting standard, we classified cash flows resulting from excess tax benefits or expenses related to employee share-based awards as cash flows from financing activities in our Condensed Consolidated Statement of Cash Flows (Unaudited). We applied all significant changes required by this accounting standard on a prospective basis from the beginning of fiscal 2017.Adopting this accounting standard did not have a material impact on our financial position, results of operations or cash flows, except as follows:•We recognized$3 million($.02per diluted share) and$13 million($.10per diluted share) of income tax benefit in our Condensed Consolidated Statement of Income (Unaudited) for the quarter and two quarters endedDecember 30, 2016, respectively; and•We classified$13 millionof cash flows resulting from excess tax benefits related to employee share-based awards as net cash provided by operating activities in our Condensed Consolidated Statement of Cash Flows (Unaudited) for the two quarters endedDecember 30, 2016.Accounting Standards Issued But Not Yet EffectiveIn May 2014, the FASB issued a comprehensive new revenue recognition standard that supersedes nearly all revenue recognition guidance under GAAP and International Financial Reporting Standards and supersedes some cost guidance for construction-type and production-type contracts. The guidance in this standard is principles-based, and consequently, entities will be required to use more judgment and make more estimates than under prior guidance, including identifying contract performance obligations, estimating variable consideration to include in the contract price and allocating the transaction price to separate performance obligations. The guidance in this standard is applicable to all contracts with customers, regardless of industry-specific or transaction-specific fact patterns. Additionally, this standard provides guidance for transactions that were not previously addressed comprehensively (e.g., service revenue, contract modifications and licenses of intellectual property) and modifies guidance for multiple-element arrangements. The core principle of this standard is that entities should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. To help financial statement users better understand the nature, amount, timing and potential uncertainty of the revenue that is recognized, this standard requires significantly more interim and annual disclosures. This standard allows for either “full retrospective” adoption (application to all periods presented) or “modified retrospective” adoption (application to only the most current period presented in the financial statements, as well as certain additional required footnote disclosures). In August 2015, the FASB issued an accounting standards update that defers the effective date of this standard by one year, while permitting entities to elect to adopt one year earlier than the original effective date. As a result, this standard is now effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2017, which for us is our fiscal 2019. We are currently evaluating the impact the new revenue recognition standard will have on our financial position, results of operations and cash flows. As the new standard supersedes nearly all revenue recognition guidance applicable to us under GAAP, it could impact revenue and cost recognition across all of our business segments as well as related business processes and information technology systems. As a result, our evaluation of the impact of the new revenue recognition standard will continue over future periods.In February 2016, the FASB issued a new lease standard that supersedes existing lease guidance under GAAP. This standard requires lessees to record most leases on their balance sheets but recognize expenses on their income statements in a manner similar to existing lease guidance under GAAP. Entities are required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements, with the option to use certain relief. Full retrospective application is prohibited. This standard is effective for fiscal years, and interim reporting periods within those years, beginning after December 15, 2018, which for us is our fiscal 2020. We are currently evaluating the impact this standard will have on our financial position, results of operations and cash flows.
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|•                                                                   | We recognized$3 million($.02per diluted share) and$13 million($.10per diluted share) of income tax benefit in our Condensed Consolidated Statement of Income (Unaudited) for the quarter and two quarters endedDecember 30, 2016, respectively; and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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|•                                                                   | We classified$13 millionof cash flows resulting from excess tax benefits related to employee share-based awards as net cash provided by operating activities in our Condensed Consolidated Statement of Cash Flows (Unaudited) for the two quarters endedDecember 30, 2016.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

X- ReferencesNo definition available.
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duration X- DefinitionThe entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows.  Describes procedure if disclosures are provided in more than one note to the financial statements.
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