Consolidated Balance Sheets - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 2,861,000,000	$ 1,837,000,000
Receivables, net	8,603,000,000	8,202,000,000
Inventories, net	4,487,000,000	4,670,000,000
Other current assets	1,510,000,000	399,000,000
Total current assets	17,461,000,000	15,108,000,000
Property, plant and equipment, net	5,775,000,000	5,549,000,000
Goodwill	10,807,000,000	10,764,000,000
Intangible assets, net	3,797,000,000	4,093,000,000
Deferred income taxes	3,111,000,000	6,625,000,000
Other noncurrent assets	5,570,000,000	5,667,000,000
Total assets	46,521,000,000	47,806,000,000
Current liabilities
Accounts payable	1,467,000,000	1,653,000,000
Customer advances and amounts in excess of costs incurred	6,752,000,000	6,776,000,000
Salaries, benefits and payroll taxes	1,785,000,000	1,764,000,000
Current maturities of long-term debt	750,000,000	0
Other current liabilities	1,883,000,000	2,349,000,000
Total current liabilities	12,637,000,000	12,542,000,000
Long-term debt, net	13,513,000,000	14,282,000,000
Accrued pension liabilities	15,703,000,000	13,855,000,000
Other postretirement benefit liabilities	719,000,000	862,000,000
Other noncurrent liabilities	4,558,000,000	4,659,000,000
Total liabilities	47,130,000,000	46,200,000,000
Stockholders’ equity
Common stock, $1 par value per share	284,000,000	289,000,000
Additional paid-in capital	0	0
Retained earnings	11,573,000,000	13,324,000,000
Accumulated other comprehensive loss	(12,540,000,000)	(12,102,000,000)
Total stockholders’ (deficit) equity	(683,000,000)	1,511,000,000
Noncontrolling interests in subsidiary	74,000,000	95,000,000
Total (deficit) equity	(609,000,000)	1,606,000,000
Total liabilities and equity	$ 46,521,000,000	$ 47,806,000,000