2013 | 2012 | ||||||
U.S. government contracts | $3,604 | $2,788 | |||||
Defense, Space & Security customers (1) | 1,073 | 1,196 | |||||
Commercial Airplanes customers | 1,072 | 903 | |||||
Reinsurance receivables | 525 | 509 | |||||
Other | 376 | 294 | |||||
Less valuation allowance | (104 | ) | (82 | ) | |||
Total | $6,546 | $5,608 |
(1) | Excludes U.S. government contracts |