XML 72 R48.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value of Financial Instruments (Unaudited) Fair Value of Financial Instruments (Unaudited) (Details 3) - USD ($)
$ in Millions
Jun. 30, 2018
Jun. 06, 2018
Dec. 31, 2017
Business Acquisition [Line Items]      
Long-term Debt, Fair Value $ 15,100   $ 16,000
Debt and Capital Lease Obligations 15,100   $ 15,300
Orbital ATK [Member]      
Business Acquisition [Line Items]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt   $ 1,687  
Orbital ATK [Member] | Senior Notes [Member]      
Business Acquisition [Line Items]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt 700    
2021 Maturity [Domain] | Senior Notes [Member]      
Business Acquisition [Line Items]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt $ 300    
Debt Instrument, Interest Rate, Stated Percentage 5.25%    
2023 Maturity [Domain] | Senior Notes [Member]      
Business Acquisition [Line Items]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt $ 400    
Debt Instrument, Interest Rate, Stated Percentage 5.50%