CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDER'S EQUITY (USD $) In Millions, unless otherwise specified	Total		Common Stock [Member]	Retained Earnings [Member]	Retained Earnings [Member] Exelis and Xylem [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
Cumulative translation adjustment, beginning balance at Dec. 31, 2010						$ 275.8
Unrealized (loss) gain on investment securities, beginning balance at Dec. 31, 2010						11.5
Noncontrolling interests, beginning balance at Dec. 31, 2010							0
Total shareholders' equity, beginning balance at Dec. 31, 2010	4,461.2
Postretirement benefit plans, beginning balance at Dec. 31, 2010						(1,359.5)
Common stock, beginning balance at Dec. 31, 2010			91.5
Retained earnings, beginning balance at Dec. 31, 2010				5,441.9
Common stock, beginning balance, shares at Dec. 31, 2010			91.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Activity from stock incentive plans, shares			1.7
Share repurchases, shares			(0.1)
Activity from stock incentive plans			1.7	103.4
Share repurchases			(0.1)	(6.5)
Net income (loss)	(129.5)			(129.5)
Cash dividends declared on common stock				(147.2)
Activity from stock incentive plans			1.7	103.4
Share repurchases			(0.1)	(6.5)
Distribution of Exelis and Xylem - Retained Earnings					(4,409.5)
Purchase of noncontrolling interest
Net change in postretirement benefit plans	(508.5)					(508.5)
Distribution of Exelis and Xylem - AOCI Postretirement Plans						1,714.8
Net cumulative translation adjustment						(38.8)
Distribution of Exelis and Xylem - AOCI Foreign Currency Translation Adjustment						(333.4)
Net change in unrealized gain (loss) on investment securities	(12.8)					(12.8)
Total accumulated other comprehensive loss						(250.9)
Reclassification Of Noncontrolling Interests							0
Income attributable to noncontrolling interests	0						0
Other							0
Net change in common stock	1.6
Net change in retained earnings	(4,589.3)
Net change in accumulated other comprehensive loss	821.3
Net change in noncontrolling interests	0
Cumulative translation adjustments, ending balance at Dec. 31, 2011						(96.4)
Unrealized (loss) gain on investment securities, ending balance at Dec. 31, 2011						(1.3)
Noncontrolling interests, beginning balance at Dec. 31, 2011							0
Total shareholders' equity, ending balance at Dec. 31, 2011	694.8
Postretirement benefit plans, ending balance at Dec. 31, 2011						(153.2)
Common stock, ending balance at Dec. 31, 2011			93.1
Retained earnings, ending balance at Dec. 31, 2011				852.6
Common stock, ending balance, shares at Dec. 31, 2011			93.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Activity from stock incentive plans, shares			4.0
Share repurchases, shares	(5.1)		(5.2)
Activity from stock incentive plans			4.0	74.1
Share repurchases	(113.4)		(5.2)	(111.6)
Net income (loss)	125.4			125.4
Cash dividends declared on common stock				(34.2)
Activity from stock incentive plans			4.0	74.1
Share repurchases	(113.4)		(5.2)	(111.6)
Distribution of Exelis and Xylem - Retained Earnings					(7.3)
Purchase of noncontrolling interest				(0.2)
Net change in postretirement benefit plans	(42.3)					(42.3)
Distribution of Exelis and Xylem - AOCI Postretirement Plans
Net cumulative translation adjustment						4.7
Distribution of Exelis and Xylem - AOCI Foreign Currency Translation Adjustment
Net change in unrealized gain (loss) on investment securities	1.0					1.0
Total accumulated other comprehensive loss						(287.5)
Reclassification Of Noncontrolling Interests							0
Income attributable to noncontrolling interests	0						0
Other							0
Net change in common stock	(1.2)
Net change in retained earnings	46.2
Net change in accumulated other comprehensive loss	(36.6)
Net change in noncontrolling interests	0
Cumulative translation adjustments, ending balance at Dec. 31, 2012	(91.7)					(91.7)
Unrealized (loss) gain on investment securities, ending balance at Dec. 31, 2012	(0.3)					(0.3)
Noncontrolling interests, beginning balance at Dec. 31, 2012	0						0
Total shareholders' equity, ending balance at Dec. 31, 2012	703.2
Postretirement benefit plans, ending balance at Dec. 31, 2012	(195.5)					(195.5)
Common stock, ending balance at Dec. 31, 2012	91.9	[1]	91.9
Retained earnings, ending balance at Dec. 31, 2012	898.8			898.8
Common stock, ending balance, shares at Dec. 31, 2012	104.0	[1]	91.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Activity from stock incentive plans, shares			2.3
Share repurchases, shares	(3.1)		(3.2)
Activity from stock incentive plans			2.3	54.4
Share repurchases	(85.2)		(3.2)	(84.7)
Net income (loss)	488.5			488.5
Cash dividends declared on common stock				(36.7)
Activity from stock incentive plans			2.3	54.4
Share repurchases	(85.2)		(3.2)	(84.7)
Distribution of Exelis and Xylem - Retained Earnings					0
Purchase of noncontrolling interest				0
Net change in postretirement benefit plans	66.3					66.3
Distribution of Exelis and Xylem - AOCI Postretirement Plans
Net cumulative translation adjustment						10.9
Distribution of Exelis and Xylem - AOCI Foreign Currency Translation Adjustment
Net change in unrealized gain (loss) on investment securities	0					0
Total accumulated other comprehensive loss						(210.3)
Reclassification Of Noncontrolling Interests							3.9
Income attributable to noncontrolling interests	2.4						2.4
Other							(0.4)
Net change in common stock	(0.9)
Net change in retained earnings	421.5
Net change in accumulated other comprehensive loss	77.2
Net change in noncontrolling interests	5.9
Cumulative translation adjustments, ending balance at Dec. 31, 2013	(80.8)					(80.8)
Unrealized (loss) gain on investment securities, ending balance at Dec. 31, 2013	(0.3)					(0.3)
Noncontrolling interests, beginning balance at Dec. 31, 2013	5.9						5.9
Total shareholders' equity, ending balance at Dec. 31, 2013	1,206.9
Postretirement benefit plans, ending balance at Dec. 31, 2013	(129.2)					(129.2)
Common stock, ending balance at Dec. 31, 2013	91.0	[1]	91.0
Retained earnings, ending balance at Dec. 31, 2013	$ 1,320.3			$ 1,320.3
Common stock, ending balance, shares at Dec. 31, 2013	104.0	[1]	91.0

[1] Shares issued and outstanding include unvested restricted common stock of 0.2 at December 31, 2012. No unvested restricted common stock was outstanding as of December 31, 2013.