Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Nov. 30, 2013	Nov. 30, 2012
Current Assets
Cash and cash equivalents	$ 197.6	$ 162.1
Accounts receivable	214.1	111.5
Inventories	105.9	46.9
Recoverable from the U.S. government and other third parties for environmental remediation costs	20.4	22.3
Receivable from Northrop Grumman Corporation ("Northrop")	6.0	6.0
Other receivables, prepaid expenses and other	22.4	16.8
Income taxes	12.6	2.5
Deferred income taxes	17.0
Total current assets	596.0	368.1
Noncurrent Assets
Property, plant and equipment, net	374.7	143.9
Real estate held for entitlement and leasing	80.2	70.2
Recoverable from the U.S. government and other third parties for environmental remediation costs	88.7	107.9
Receivable from Northrop	72.0	69.3
Deferred income taxes	175.7
Goodwill	159.6	94.9
Intangible assets	135.7	13.9
Other noncurrent assets, net	72.7	51.1
Total Noncurrent Assets	1,159.3	551.2
Total Assets	1,755.3	919.3
Current Liabilities
Short-term borrowings and current portion of long-term debt	2.9	2.7
Accounts payable	122.5	56.1
Reserves for environmental remediation costs	36.6	39.5
Postretirement medical and life insurance benefits	7.3	7.5
Advance payments on contracts	104.4	100.1
Deferred income taxes		9.4
Other current liabilities	206.0	103.3
Total Current Liabilities	479.7	318.6
Noncurrent Liabilities
Senior debt	42.5	45.0
Second-priority senior notes	460.0
Convertible subordinated notes	193.2	200.2
Other debt	0.6	0.8
Deferred income taxes		2.2
Reserves for environmental remediation costs	134.7	150.0
Pension benefits	261.7	454.5
Postretirement medical and life insurance benefits	59.3	68.3
Other noncurrent liabilities	73.8	68.5
Total Noncurrent Liabilities	1,225.8	989.5
Total Liabilities	1,705.5	1,308.1
Commitments and contingencies (Note 8)
Redeemable common stock, par value of $0.10; less than 0.1 million shares issued and outstanding as of November 30, 2013; 0.4 million shares issued and outstanding as of November 30, 2012	0.2	3.9
Shareholders' Equity (Deficit)
Preference stock, par value of $1.00; 15.0 million shares authorized; none issued or outstanding
Common stock, par value of $0.10; 150.0 million shares authorized; 59.9 million shares issued and outstanding as of November 30, 2013; 58.9 million shares issued and outstanding as of November 30, 2012	5.9	5.9
Other capital	280.1	269.6
Accumulated deficit	(14.0)	(181.9)
Accumulated other comprehensive loss, net of income taxes	(222.4)	(486.3)
Total Shareholders' Equity (Deficit)	49.6	(392.7)
Total Liabilities, Redeemable Common Stock and Shareholders' Equity (Deficit)	$ 1,755.3	$ 919.3