Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 27, 2021	Jun. 28, 2020	Jun. 30, 2019	Jun. 24, 2018
Operating Loss Carryforwards [Line Items]
Valuation allowance of deferred tax assets	$ 414.4	$ 208.5
Foreign net operating loss carryforward	491.8
Federal net operating loss carryforward	1,100.0
State net operating loss carryforwards	251.0
Unrecognized tax benefits	7.4	7.4	$ 8.2	$ 8.6
Increase (decrease) in unrecognized tax benefits	0.0
Estimated change in gross unrecognized tax benefits	0.6
Interest and penalties expense related to unrecognized tax benefits (less than)	0.1
Interest and penalties accrued related to unrecognized tax benefits (less than)	0.1
Undistributed earnings of foreign subsidiaries	189.7
Undistributed earnings of foreign subsidiaries expected to be repatriated	171.4
Foreign income taxes incurred	1.4
Undistributed foreign earnings on which income taxes have not been provided	18.3
Income tax expense (benefit) if foreign earnings are repatriated	0.3
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance of operating loss carryforward	87.4
Valuation allowance of deferred tax assets		205.2
Tax credit carryforward	78.7
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance of operating loss carryforward	118.5
Valuation allowance of deferred tax assets		$ 3.3
Deferred tax assets	121.8
Realizable deferred tax assets	121.8
Net operating loss deferred tax assets	121.8
Valuation allowance of net operating loss carryforwards	488.5
Net operating loss carryforward not subject to expiration	7.8
Net operating loss carryforward subject to expiration	484.0
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Tax credit carryforward	$ 1.6