Condensed Consolidated Statements of Financial Position (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 3,183	$ 3,862
Accounts receivable, net of progress payments	3,050	2,858
Inventoried costs, net of progress payments	930	798
Deferred tax assets	524	574
Prepaid expenses and other current assets	159	300
Total current assets	7,846	8,392
Property, plant and equipment, net of accumulated depreciation of $4,215 in 2013 and $4,146 in 2012	2,829	2,887
Goodwill	12,437	12,431
Non-current deferred tax assets	1,510	1,542
Other non-current assets	1,292	1,291
Total assets	25,914	26,543
Liabilities
Trade accounts payable	1,225	1,392
Accrued employee compensation	938	1,173
Advance payments and billings in excess of costs incurred	1,801	1,759
Other current liabilities	1,591	1,732
Total current liabilities	5,555	6,056
Long-term debt, net of current portion	3,937	3,930
Pension and post-retirement benefit plan liabilities	6,025	6,085
Other non-current liabilities	928	958
Total liabilities	16,445	17,029
Commitments and contingencies (Note 7)
Shareholders' equity
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $1 par value; 800,000,000 shares authorized; issued and outstanding: 2013—235,102,831; 2012—239,209,812	235	239
Paid-in capital	2,461	2,924
Retained earnings	11,496	11,138
Accumulated other comprehensive loss	(4,723)	(4,787)
Total shareholders' equity	9,469	9,514
Total liabilities and shareholders' equity	$ 25,914	$ 26,543