Employee Pension and Other Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Employee Defined Benefit Plans
Employer contributions			$ 4.2
Components of the net periodic cost for the pension and benefits plans
Cash outlays expected during current fiscal year	$ 7.6		7.6
Pension Benefit Plans
Components of the net periodic cost for the pension and benefits plans
Service cost	0.0	$ 0.0	0.1	$ 0.0
Interest cost	0.6	0.7	1.8	2.1
Expected return on plan assets	(0.4)	(0.4)	(1.2)	(1.2)
Amortization of net actuarial losses	0.5	0.3	1.5	1.2
Net periodic benefit cost	$ 0.7	$ 0.6	2.2	$ 2.1
UNITED KINGDOM
Employee Defined Benefit Plans
Employer contributions			$ 0.7