Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Apr. 01, 2012	Dec. 31, 2011
Current assets:
Cash and equivalents	$ 2,632	$ 2,649
Accounts receivable	4,686	4,452
Contracts in process	4,929	5,168
Inventories	2,444	2,310
Other current assets	819	789
Total current assets	15,510	15,368
Noncurrent assets:
Property, plant and equipment, net	3,290	3,284
Intangible assets, net	1,783	1,813
Goodwill	13,759	13,576
Other assets	967	842
Total noncurrent assets	19,799	19,515
Total assets	35,309	34,883
Current liabilities:
Short-term debt and current portion of long-term debt	3	23
Accounts payable	2,509	2,895
Customer advances and deposits	5,299	5,011
Other current liabilities	3,142	3,216
Total current liabilities	10,953	11,145
Noncurrent liabilities:
Long-term debt	3,905	3,907
Other liabilities	6,597	6,599
Commitments and contingencies (See Note K)
Total noncurrent liabilities	10,502	10,506
Shareholders' equity:
Common stock	482	482
Surplus	1,897	1,888
Retained earnings	19,297	18,917
Treasury stock	(5,710)	(5,743)
Accumulated other comprehensive loss	(2,112)	(2,312)
Total shareholders' equity	13,854	13,232
Total liabilities and shareholders' equity	$ 35,309	$ 34,883