v3.6.0.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Taxes [Line Items]      
Total net state income tax expense $ 112 $ 106 $ 149
U.S. federal statutory income tax rate 35.00% 35.00% 35.00%
Recognized tax benefit for the impact of the tax credit $ 107 $ 70 $ 63
Net deferred tax (benefit) (231) (473) (351)
Undistributed earnings of foreign subsidiaries not taxed to U.S. income taxes and foreign withholding taxes 386 310 249
Estimated additional income tax expense after foreign tax credits on undistributed earnings of foreign companies if remitted 64 49 52
Federal and foreign income tax payments made, net of refunds received 1,300 1,800 1,500
Refund received from the IRS     200
Lockheed Martin Commercial Flight Training      
Income Taxes [Line Items]      
Asset impairment charge   90  
Net deferred tax (benefit)   $ (80)  
Tax benefit reduced the effective income tax rate   1.20%  
Accounting Standards Update 2016-09 | Restatement Adjustment | Adjustments for New Accounting Principle, Early Adoption      
Income Taxes [Line Items]      
Excess income tax benefit from share-based compensation, operating activities $ 152    
Tax Year 2014      
Income Taxes [Line Items]      
Recognized tax benefit for the impact of the tax credit     $ 45
Earliest Tax Year | Internal Revenue Service (IRS)      
Income Taxes [Line Items]      
Tax years subject to examination 2015    
Latest Tax Year | Internal Revenue Service (IRS)      
Income Taxes [Line Items]      
Tax years subject to examination 2016