Capital Stock - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended		12 Months Ended			72 Months Ended
	Oct. 31, 2011	Oct. 27, 2006	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012
Aggregate common stock and preferred stock authorized			300			300
Common stock, authorized			250	250		250
Common stock, par value	$ 1		$ 1	$ 1		$ 1
Preferred Stock, authorized			50			50
Preferred Stock, par value
Preferred Stock, outstanding			0	0		0
Dividends declared per common share			$ 0.364	$ 1.591	$ 2.000
Share repurchase program		$ 1,000,000,000
Term of repurchase program		3 years
Shares purchased under share repurchase program			5.1			12.2
Cost of shares repurchased under share repurchase program			113,400,000			544,200,000
Number of share repurchased under settlement of employee tax withholding obligations			0.1	0.1
Shares repurchased aggregate value under settlement of employee tax withholding obligations			$ 3,400,000	$ 6,600,000
Issuance of shares from treasury account related to equity compensation arrangements			4.0
Common Stock held in treasury account			11.9	10.6		11.9
Stockholders equity note reverse stock split conversion ratio	0.50
Xylem [Member]
Common stock of ITT, shares issued	1
Exelis [Member]
Common stock of ITT, shares issued	1