Restructuring Charges - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Restructuring Cost and Reserve [Line Items] | ||
| Severance charges | $ 99 | $ 102 |
| Sikorsky Aircraft Corporation | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance payments | 40 | |
| Aeronautics | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance charges | 80 | |
| Severance payments | 70 | |
| Information Systems & Global Solutions | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance charges | 15 | |
| Rotary and Mission Systems & Information System and Global Solutions | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance charges | 82 | |
| Severance payments | $ 64 | |
| Rotary and Mission Systems | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance charges | $ 67 | |