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Postretirement Benefit Plans (Details Textual) (USD $)
In Millions, unless otherwise specified
 2 Months Ended 12 Months Ended 2 Months Ended 12 Months Ended 2 Months Ended 12 Months Ended 2 Months Ended 12 Months Ended 2 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2011
Participants
Dec. 31, 2011
Maximum [Member]
Dec. 31, 2011
Minimum [Member]
Dec. 31, 2010
Pension [Member]
Dec. 31, 2011
Pension [Member]
Dec. 31, 2011
ITT Pension Plan for Bargaining Unit Employees Seneca Falls [Member]
Dec. 31, 2011
ITT Consolidated Hourly Pension Plan [Member]
Dec. 31, 2011
Other Non Qualified US Plan [Member]
Dec. 31, 2010
U.S. Pension Plans [Member]
Dec. 31, 2011
U.S. Pension Plans [Member]
Dec. 31, 2010
International Pension Plan [Member]
Dec. 31, 2011
International Pension Plan [Member]
Dec. 31, 2011
Postretirement Benefit Plans [Member]
Dec. 31, 2010
Postretirement Benefit Plans [Member]
Dec. 31, 2011
Postretirement Benefit Plans [Member]
Maximum [Member]
Dec. 31, 2011
Postretirement Benefit Plans [Member]
Minimum [Member]
Dec. 31, 2010
Defined Contribution Plans [Member]
Dec. 31, 2011
Defined Contribution Plans [Member]
Dec. 31, 2009
Defined Contribution Plans [Member]
Dec. 31, 2011
Exelis [Member]
Dec. 31, 2011
Xylem [Member]
Employee Benefit Plans (Additional) (Textual) [Abstract]                                                
Company recorded curtailment expense                               $ 1                
Company contribution percentage of base pay prior to enhancement                               3.50%                
Company contribution percentage of base pay post enhancement                                   7.00% 6.00%          
Period of distribution                               5 years                
Percentage of transition credit                                   5.00%            
Contributions made to pension plans             5 21       2 18 3 3 21 5     7 8 5    
Stock fund held approximately 0.5     0.5                                        
Shares held in Retirement Savings Plan for salaried employees and Hourly Savings Plan                                             0.4 1.1
Projected Benefit Obligation                 28.00% 26.00% 30.00%       16.00%                  
Percentage of projected benefit obligation provides health care and life insurance benefits to new participants 70.00%     70.00%                                        
Active participants in numerous defined benefit pension plans       0                                        
Long-term annual rate of return for domestic pension plans                         8.00%                      
Contribution to range related to pension         25 20                                    
Funded status of postretirement benefit plans (330) (279)   (330)     (112) (146)       (61) (96) (51) (50)                  
Maturities period corporate bonds         30 years 0 years                                    
Postretirement Benefit Plan (Textual) [Abstract]                                                
Accumulated benefit obligation 328 297   328                                        
Assumed rate of future increase in per capita cost of health care for 2012       7.30%                                        
Assumed rate of future decrease in per capita cost of health care for 2019       5.00%                                        
Effect of one percent increase on benefit obligation       23                                        
Effect of one percent increase on annual service and interest cost components       2                                        
Effect of one percent decrease on benefit obligation       19                                        
Effect of one percent decrease on annual service and interest cost components       1                                        
Foreign government plan assets 2     2                                        
Part of net contribution expected to be made in first quarter       2                                        
Employees Related expenses in SRP $ 15 $ 9 $ 4