Consolidated Statements of Changes in Shareholders Equity (USD $) In Millions	Total	Exelis and Xylem [Member]	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Cumulative translation adjustments, beginning balance at Dec. 31, 2008					$ 224
Unrealized gain on investment securities, beginning balance at Dec. 31, 2008					1
Postretirement benefit plans, beginning balance at Dec. 31, 2008					(1,529)
Common stock, beginning balance at Dec. 31, 2008	3,028		90	4,242
Common stock, beginning balance, shares at Dec. 31, 2008			90.3
Activity from stock incentive plans			1	45
Activity from stock incentive plans, shares			0.5
Net (loss) income	629			629
Cash dividends declared on common stock				(154)
Net change in postretirement benefit plans, net of tax	141				141
Net foreign currency translation adjustment					126
Retained Distribution		0
Retained Distribution under postretirement benefit plans		0
Retained Distribution under foreign currency translation adjustment		0
Total accumulated other comprehensive loss	(1,026)
Net change in unrealized gains on investment securities, net of tax	12				11
Net change in common stock	0
Net change in retained earnings	520
Net change in accumulated other comprehensive income	279
Unrealized gain on investment securities, ending balance at Dec. 31, 2009					12
Common stock, ending balance at Dec. 31, 2009	3,827		91	4,762
Postretirement benefit plans, ending balance at Dec. 31, 2009					(1,388)
Cumulative translation adjustments, ending balance at Dec. 31, 2009					350
Common stock, ending balance, shares at Dec. 31, 2009			90.8
Activity from stock incentive plans			1	59
Activity from stock incentive plans, shares			0.7
Net (loss) income	804			804
Cash dividends declared on common stock				(184)
Net change in postretirement benefit plans, net of tax	29				29
Net foreign currency translation adjustment					(74)
Retained Distribution		0
Retained Distribution under postretirement benefit plans		0
Retained Distribution under foreign currency translation adjustment		0
Total accumulated other comprehensive loss	(1,072)
Net change in unrealized gains on investment securities, net of tax	(1)				(1)
Net change in common stock	1
Net change in retained earnings	679
Net change in accumulated other comprehensive income	(46)
Unrealized gain on investment securities, ending balance at Dec. 31, 2010	11				11
Common stock, ending balance at Dec. 31, 2010	4,461		92	5,441
Postretirement benefit plans, ending balance at Dec. 31, 2010	1,359				(1,359)
Cumulative translation adjustments, ending balance at Dec. 31, 2010	276				276
Common stock, ending balance, shares at Dec. 31, 2010			91.5
Activity from stock incentive plans			1	97
Activity from stock incentive plans, shares			1.6
Net (loss) income	(130)			(130)
Cash dividends declared on common stock				(147)
Net change in postretirement benefit plans, net of tax	(508)				(508)
Net foreign currency translation adjustment					(40)
Retained Distribution		(4,409)
Retained Distribution under postretirement benefit plans		1,714
Retained Distribution under foreign currency translation adjustment		(333)
Total accumulated other comprehensive loss	(251)
Net change in unrealized gains on investment securities, net of tax	(12)				(12)
Net change in common stock	1
Net change in retained earnings	(4,589)
Net change in accumulated other comprehensive income	821
Unrealized gain on investment securities, ending balance at Dec. 31, 2011	(1)				(1)
Common stock, ending balance at Dec. 31, 2011	694		93	852
Postretirement benefit plans, ending balance at Dec. 31, 2011	153				(153)
Cumulative translation adjustments, ending balance at Dec. 31, 2011	$ (97)				$ (97)
Common stock, ending balance, shares at Dec. 31, 2011			93.1