Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 25, 2020	Sep. 27, 2019	Sep. 25, 2020	Sep. 27, 2019
Net income (loss)	$ 191.6	$ (1.1)	$ (791.7)
Other comprehensive income (loss), net of tax:
Currency translation adjustments	1.0	(2.1)	0.7	$ 1.6
Derivatives, net of tax	0.0	0.3	0.1	1.0
Benefit plans, net of tax	(0.6)	(0.2)	(1.3)	(0.9)
Total other comprehensive income (loss), net of tax	0.4	(2.0)	(0.5)	1.7
Comprehensive income (loss)	$ 192.0	$ (3.1)	$ (792.2)	$ 162.3