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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 03, 2020
Mar. 29, 2019
Apr. 03, 2020
Mar. 29, 2019
Statement of Comprehensive Income [Abstract]        
Tax on amortization of prior service cost included in net periodic benefit cost $ 0.1 $ 0.1 $ 0.1 [1] $ 0.1
Tax on amortization of net actuarial loss included in net periodic benefit cost (0.1) $ (0.1) (0.3) $ (0.2)
Tax on increase (decrease) in unrealized gain on derivative instruments (0.6)   (0.6) [1]  
Tax on reclassification adjustments on derivative instruments $ 0.2   $ 0.4  
[1] Tax expense or benefit related to the periods presented are not material.