| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 831a | 430a |
| Accounts receivable, net | 212a | 461a |
| Contract assets | 1,683a | 1,537a |
| Inventoried costs, net | 208a | 186a |
| Income taxes receivable | 204a | 183a |
| Prepaid expenses and other current assets | 90a | 83a |
| Total current assets | 3,228a | 2,880a |
| Property, plant, and equipment | — | — |
| Land and land improvements | 377a | 351a |
| Buildings and leasehold improvements | 3,182a | 2,954a |
| Machinery and other equipment | 2,267a | 2,197a |
| Capitalized software costs | 207a | 261a |
| Accumulated depreciation and amortization | -2,583a | -2,467a |
| Property, plant, and equipment, net | 3,450a | 3,296a |
| Other assets | — | — |
| Operating lease assets | 239a | 262a |
| Goodwill | 2,618a | 2,618a |
| Other intangible assets, net | 782a | 891a |
| Pension plan assets | 1,422a | 888a |
| Miscellaneous other assets | 402a | 380a |
| Total other assets | 5,463a | 5,039a |
| Total assets | 12,141a | 11,215a |
| Liabilities and stockholders’ equity | — | — |
| Current liabilities | — | — |
| Trade accounts payable | 598a | 554a |
| Accrued employees’ compensation | 392a | 382a |
| Current portion of long-term debt | 503a | 231a |
| Current portion of postretirement plan liabilities | 124a | 129a |
| Current portion of workers’ compensation liabilities | 201a | 224a |
| Contract liabilities | 774a | 1,063a |
| Other current liabilities | 399a | 449a |
| Total current liabilities | 2,991a | 3,032a |
| Long-term debt | 2,700a | 2,214a |
| Pension plan liabilities | 142a | 212a |
| Other postretirement plan liabilities | 209a | 241a |
| Workers’ compensation liabilities | 443a | 449a |
| Long-term operating lease liabilities | 205a | 228a |
| Deferred tax liabilities | 378a | 367a |
| Other long-term liabilities | 407a | 379a |
| Total liabilities | 7,475a | 7,122a |
| Stockholders’ equity | — | — |
| Common stock | 1a | 1a |
| Additional paid-in capital | 2,045a | 2,045a |
| Retained earnings | 5,097a | 4,755a |
| Treasury stock | -2,449a | -2,286a |
| Accumulated other comprehensive loss | -28a | -422a |
| Total stockholders’ equity | 4,666a | 4,093a |
| Total liabilities and stockholders’ equity | 12,141a | 11,215a |