|**Income From Continuing Operations Per Share**                                               | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|**Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent [Abstract]**   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|INCOME FROM CONTINUING OPERATIONS PER SHARE                                                   | INCOME FROM CONTINUING OPERATIONS PER SHAREThe computations of income from continuing operations per share are as follows (in thisNote 16, “income from continuing operations” refers to income from continuing operations attributable to Harris Corporation common shareholders):201620152014(In millions, except per share amounts)Income from continuing operations$345$334$540Adjustments for participating securities outstanding(1)(1)(4)Income from continuing operations used in per basic and diluted common share calculations (A)$344$333$536Basic weighted average common shares outstanding (B)123.8105.7106.1Impact of dilutive share-based awards1.21.11.2Diluted weighted average common shares outstanding (C)125.0106.8107.3Income from continuing operations per basic common share (A)/(B)$2.77$3.15$5.05Income from continuing operations per diluted common share (A)/(C)$2.75$3.11$5.00Potential dilutive common shares primarily consist of employee stock options and performance share unit awards. Employee stock options to purchase approximately1,671,045,605,419and651,904shares of our common stock were outstanding at the end of fiscal2016,2015and2014, respectively, but were not included as dilutive stock options in the computations of income from continuing operations per diluted common share because the effect would have been antidilutive.
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|Income from continuing operations                                                             | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Adjustments for participating securities outstanding                                          | (1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Income from continuing operations used in per basic and diluted common share calculations (A) | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Basic weighted average common shares outstanding (B)                                          | 123.8                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Impact of dilutive share-based awards                                                         | 1.2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Diluted weighted average common shares outstanding (C)                                        | 125.0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Income from continuing operations per basic common share (A)/(B)                              | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Income from continuing operations per diluted common share (A)/(C)                            | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

X- DefinitionThe entire disclosure for earnings per share.
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