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Business Combinations (Raytheon Company Finite Lived Intangible Assets Acquired) (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 03, 2020
Dec. 31, 2020
Customer Relationships [Member]    
Business Acquisition [Line Items]    
Finite-Lived Intangible Asset, Useful Life 25 years  
Customer Relationships [Member] | Minimum [Member]    
Business Acquisition [Line Items]    
Finite-Lived Intangible Asset, Useful Life   3 years
Customer Relationships [Member] | Maximum [Member]    
Business Acquisition [Line Items]    
Finite-Lived Intangible Asset, Useful Life   32 years
Developed Technology Rights | Minimum [Member]    
Business Acquisition [Line Items]    
Finite-Lived Intangible Asset, Useful Life 5 years 15 years
Developed Technology Rights | Maximum [Member]    
Business Acquisition [Line Items]    
Finite-Lived Intangible Asset, Useful Life 7 years 25 years
Raytheon Company [Member]    
Business Acquisition [Line Items]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 19,130  
Raytheon Company [Member] | Customer Relationships [Member]    
Business Acquisition [Line Items]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles 12,900  
Raytheon Company [Member] | Trademarks    
Business Acquisition [Line Items]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles 5,430  
Raytheon Company [Member] | Developed Technology Rights    
Business Acquisition [Line Items]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles $ 800