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, 2011					$ (96.4)
Unrealized (loss) gain on investment securities, beginning balance at Dec. 31, 2011					(1.3)
Noncontrolling interests, beginning balance at Dec. 31, 2011						0
Total shareholders’ equity, beginning balance at Dec. 31, 2011	694.8
Postretirement benefit plans, beginning balance at Dec. 31, 2011					(153.2)
Common stock, beginning balance at Dec. 31, 2011		93.1
Retained earnings, beginning balance at Dec. 31, 2011			852.6
Common stock, beginning balance at Dec. 31, 2011		93.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share repurchases		(5.2)
Activity from stock incentive plans		4.0	74.1
Share repurchases		(5.2)	(111.6)
Net income	125.4		125.4
Cash dividends declared on common stock			(34.2)
Activity from stock incentive plans		4.0	74.1
Share repurchases		(5.2)	(111.6)
Distribution of Exelis and Xylem				(7.3)
Net change in postretirement benefit plans	(42.3)				(42.3)
Net cumulative translation adjustment					4.7
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
Net Income (Loss) Attributable to Noncontrolling Interest	0					0
Purchase of noncontrolling interests			(0.2)			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)
Unrealized (loss) gain on investment securities, ending balance at Dec. 31, 2012					(0.3)
Noncontrolling interests, ending balance at Dec. 31, 2012						0
Total shareholders’ equity, ending balance at Dec. 31, 2012	703.2
Postretirement benefit plans, ending balance at Dec. 31, 2012					(195.5)
Common stock, ending balance at Dec. 31, 2012		91.9
Retained earnings, ending balance at Dec. 31, 2012			898.8
Common stock, ending balance at Dec. 31, 2012		91.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share repurchases	(3.1)	(3.2)
Activity from stock incentive plans		2.3	54.4
Share repurchases	(85.2)	(3.2)	(84.7)
Net income	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)
Net change in postretirement benefit plans	66.3				66.3
Net cumulative translation adjustment					10.9
Net change in unrealized gain (loss) on investment securities	0				0
Total accumulated other comprehensive loss					(210.3)
Reclassification of noncontrolling interests						3.9
Net Income (Loss) Attributable to Noncontrolling Interest	2.4					2.4
Purchase of noncontrolling interests						0
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, ending 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	91.0
Retained earnings, ending balance at Dec. 31, 2013	1,320.3		1,320.3
Common stock, ending balance at Dec. 31, 2013	104.0	91.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Activity from stock incentive plans		1.4
Share repurchases	(1.1)	(1.4)
Activity from stock incentive plans		1.4	38.2
Share repurchases	(50.0)	(1.4)	(58.8)
Net income			184.5
Cash dividends declared on common stock			(40.6)
Activity from stock incentive plans		1.4	38.2
Share repurchases	(50.0)	(1.4)	(58.8)
Distribution of Exelis and Xylem				0
Net change in postretirement benefit plans	(15.0)				(15.0)
Net cumulative translation adjustment					(95.9)
Net change in unrealized gain (loss) on investment securities	0				0
Total accumulated other comprehensive loss					(321.2)
Reclassification of noncontrolling interests						0
Net Income (Loss) Attributable to Noncontrolling Interest	2.3					2.3
Purchase of noncontrolling interests			1.5			(2.9)
Other						0.1
Net change in common stock	0
Net change in retained earnings	124.8
Net change in accumulated other comprehensive loss	(110.9)
Net change in noncontrolling interests	(0.5)
Cumulative translation adjustments, ending balance at Dec. 31, 2014	(176.7)				(176.7)
Unrealized (loss) gain on investment securities, ending balance at Dec. 31, 2014	(0.3)				(0.3)
Noncontrolling interests, ending balance at Dec. 31, 2014	5.4
Total shareholders’ equity, ending balance at Dec. 31, 2014	1,220.3
Postretirement benefit plans, ending balance at Dec. 31, 2014	(144.2)				(144.2)
Common stock, ending balance at Dec. 31, 2014	91.0	91.0
Retained earnings, ending balance at Dec. 31, 2014	$ 1,445.1
Common stock, ending balance at Dec. 31, 2014	104.3	91.0