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Long-Term Incentive Employee Compensation (Details Textual) (USD $) In Millions, except Per Share data, unless otherwise specified | 2 Months Ended | 12 Months Ended |  | 12 Months Ended | 10 Months Ended | 2 Months Ended | 10 Months Ended | 12 Months Ended |  |  |  |  | 12 Months Ended
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Dec. 31, 2011 Y | Dec. 31, 2009 | Dec. 31, 2011 Y | Dec. 31, 2010 | Dec. 31, 2009 | Oct. 31, 2011 | Dec. 31, 2011 Maximum [Member] | Dec. 31, 2011 Minimum [Member] | Oct. 31, 2011 Employee Stock Option [Member] | Dec. 31, 2011 Restricted Stock [Member] | Dec. 31, 2010 Restricted Stock [Member] | Oct. 31, 2011 Restricted Stock [Member] | Oct. 31, 2010 Restricted Stock [Member] | Oct. 31, 2009 Restricted Stock [Member] | Dec. 31, 2011 Restricted Stock [Member] | Dec. 31, 2011 TSR Plan Awards [Member] | Dec. 31, 2010 TSR Plan Awards [Member] | Dec. 31, 2009 TSR Plan Awards [Member] | Dec. 31, 2011 Options granted between 2004 and 2009 [Member] Y | Dec. 31, 2011 Options granted prior to 2004, during 2010 and 2011 [Member] Y | Dec. 31, 2011 Qualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares initially available for awards under this Stock Option plan |  |  | 4.6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share available for future grant under stock option | 41.1 |  | 41.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted awards with a contractual term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 | 10 |
Cash payments to settle awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 18 | 21 |  |  |
Granted , shares |  | 0 |  |  |  |  |  |  |  | 0.4 | 0 | 0.3 | 0.3 | 0.3 |  |  |  |  |  |  |
Share-based compensation, vesting period, minimum |  |  |  |  |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation, vesting period, maximum |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |
Converted and Cancelled to the employees of Exelis/Xylem, shares |  |  |  |  |  |  |  |  | 1.2 |  |  | 0.5 |  |  |  |  |  |  |  |  |
Share cancelled in connection with distribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.5 |  |  |  |  |  | 1.2
Long-Term Incentive Employee Compensation (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost related to unvested options and restricted stock | $ 22 |  | $ 22 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost weighted average amortization period (years) |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transformation costs |  |  | 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-qualified stock options exercisable period |  |  | seven or ten-year periods, except in certain instances of death, retirement or disability. Options granted between 2004 and 2009 were awarded with a contractual term of seven years. Options granted prior to 2004 and during 2010 and 2011 were awarded with a contractual term of ten years. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intrinsic value of options exercised |  |  | 30 | 22 | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash received from the exercise of stock options |  |  | 62 | 35 | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax benefit realized from stock options exercised |  |  | 17 |  | 11 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax benefit realized with lapses of restricted stock |  |  |  | 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excess Tax benefit from stock activity |  |  | 7 | 6 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ITT's closing stock price | $ 19.33 |  | $ 19.33 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable options out of the money |  |  | 1.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of stock option expected to vest | 7.9 |  | 7.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average price of stock options expected to vest | $ 16.65 |  | $ 16.65 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate intrinsic value of stock options expected to vest | 25 |  | 25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average remaining contractual life stock option expected to vest | 2.9 |  | 2.9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of contractual life of 0.2 options |  |  | 2012-01-02 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock Outstanding Vested Shares Till Termination Of Service | 0.1 |  | 0.1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Performance period for measuring fair value of outstanding awards | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of restricted Stock expected to vest | 1.3 |  | 1.3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average grant date fair value |  |  | $ 95.14 | $ 29.00 | $ 19.20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation, vesting period |  |  | Over 3 Years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of shares from treasury account related to equity compensation arrangements |  |  | 0.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Target Payout percentage of unvested portion to settle via cash payment for modification of Awards | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash payment to settle TSR modified awards |  |  | Less than $1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding weighted average post exercise price | $ 92.20 |  | $ 92.20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incremental fair value (modification charge) |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Charge after vested awards |  |  |  |  |  | 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred compensation cost |  |  | $ 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of restricted stock units outstanding | 63.00% | 19.00% | 63.00% | 21.00% | 19.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph h -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph i -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Reductions in the entity's income taxes that arise when compensation cost (from non-qualified equity-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element reduces net cash provided by operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A96 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=6576910&loc=d3e11374-113907 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph i -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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