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DISCONTINUED OPERATIONS - Summary of Income from Discontinued Operations (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]    
Impairment, restructuring and other charges (recoveries), net $ (4.9) $ 1.4
Gain on sale / contribution of business 0.0 0.2
Income (loss) from discontinued operations before income taxes 4.9 (1.2)
Income tax expense from discontinued operations 2.0 0.0
Income (loss) from discontinued operations, net of tax $ 2.9 $ (1.2)