v3.25.2
LIFO to FIFO Change in Accounting Principle - Income Statement (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Costs of revenue(a) $ 625.6 $ 589.1 $ 1,222.3 $ 1,198.2
Gross profit 346.8 316.8 663.1 618.3
Operating Income (Loss) 175.1 159.7 326.0 309.6
Income from continuing operations before income tax 164.2 154.1 308.5 299.6
Income tax expense 42.5 33.2 77.7 66.1
Income (Loss) from Continuing Operations before Income Taxes, Domestic     229.4 231.3
Net income 121.7 120.9 230.8 233.5
Net income attributable to ITT Inc. $ 121.0 $ 119.7 $ 229.4 $ 231.3
Basic earnings per share $ 1.53 $ 1.46   $ 2.82
Diluted earnings per share $ 1.52 $ 1.45   $ 2.80
Previously Reported        
Costs of revenue(a)   $ 589.8   $ 1,199.6
Gross profit   316.1   616.9
Operating Income (Loss)   159.0   308.2
Income from continuing operations before income tax   153.4   298.2
Income tax expense   33.0   65.8
Net income   120.4   232.4
Net income attributable to ITT Inc.   $ 119.2   $ 230.2
Basic earnings per share   $ 1.45   $ 2.80
Diluted earnings per share   $ 1.45   $ 2.79
Revision of Prior Period, Adjustment        
Costs of revenue(a)   $ (0.7)   $ (1.4)
Gross profit   0.7   1.4
Operating Income (Loss)   0.7   1.4
Income from continuing operations before income tax   0.7   1.4
Income tax expense   0.2   0.3
Net income   0.5   1.1
Net income attributable to ITT Inc.   $ 0.5   $ 1.1
Basic earnings per share   $ 0.01   $ 0.02
Diluted earnings per share   $ 0   $ 0.01