Net sales by customer category were as follows (in millions):
| 2013 | 2012 | 2011 | ||||||||||
|
U.S. Government |
||||||||||||
|
Aeronautics |
$ | 11,025 | $ | 11,587 | $ | 10,749 | ||||||
|
Information Systems & Global Solutions |
7,768 | 8,340 | 8,769 | |||||||||
|
Missiles and Fire Control |
5,177 | 5,224 | 5,455 | |||||||||
|
Mission Systems and Training |
5,370 | 5,685 | 5,180 | |||||||||
|
Space Systems |
7,833 | 7,952 | 7,848 | |||||||||
|
Total U.S. Government net sales |
$ | 37,173 | $ | 38,788 | $ | 38,001 | ||||||
|
International (a) |
||||||||||||
|
Aeronautics |
$ | 3,078 | $ | 3,323 | $ | 3,577 | ||||||
|
Information Systems & Global Solutions |
399 | 380 | 464 | |||||||||
|
Missiles and Fire Control |
2,546 | 2,208 | 1,977 | |||||||||
|
Mission Systems and Training |
1,672 | 1,826 | 1,906 | |||||||||
|
Space Systems |
73 | 319 | 144 | |||||||||
|
Total international net sales |
$ | 7,768 | $ | 8,056 | $ | 8,068 | ||||||
|
U.S. Commercial and Other |
||||||||||||
|
Aeronautics |
$ | 20 | $ | 43 | $ | 36 | ||||||
|
Information Systems & Global Solutions |
200 | 126 | 148 | |||||||||
|
Missiles and Fire Control |
34 | 25 | 31 | |||||||||
|
Mission Systems and Training |
111 | 68 | 46 | |||||||||
|
Space Systems |
52 | 76 | 169 | |||||||||
|
Total U.S. commercial and other net sales |
$ | 417 | $ | 338 | $ | 430 | ||||||
|
Total net sales |
$ | 45,358 | $ | 47,182 | $ | 46,499 | ||||||
| (a) |
International sales include foreign military sales contracted through the U.S. Government, direct commercial sales with international governments, and commercial and other sales to international customers. |