Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 3,160	$ 1,514
Receivables, net	1,978	2,337
Contract assets	9,545	9,094
Inventories	3,545	3,619
Other current assets	1,150	531
Total current assets	19,378	17,095
Property, plant and equipment, net	7,213	6,591
Goodwill	10,806	10,604
Intangible assets, net	3,012	3,213
Deferred income taxes	3,475	3,319
Other noncurrent assets	6,826	6,706
Total assets	50,710	47,528
Current liabilities
Accounts payable	880	1,281
Contract liabilities	7,545	7,054
Salaries, benefits and payroll taxes	3,163	2,466
Current maturities of long-term debt	500	1,250
Other current liabilities	1,845	1,921
Total current liabilities	13,933	13,972
Long-term debt, net	11,669	11,404
Accrued pension liabilities	12,874	13,234
Other noncurrent liabilities	6,196	5,747
Total liabilities	44,672	44,357
Stockholders’ equity
Common stock, $1 par value per share	279	280
Additional paid-in capital	221	0
Retained earnings	21,636	18,401
Accumulated other comprehensive loss	(16,121)	(15,554)
Total stockholders’ equity	6,015	3,127
Noncontrolling interests in subsidiary	23	44
Total equity	6,038	3,171
Total liabilities and equity	$ 50,710	$ 47,528