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Employee Pension and Other Benefit Plans - Assets at Fair Value and Assets Allocations (Details) - Pension Benefit Plans - USD ($) $ in Millions	Jul. 03, 2021	Jun. 27, 2020	Jun. 29, 2019
Asset category
Fair value of total plan assets	$ 36.2	$ 29.0	$ 29.9
Percentage of Plan Assets	100.00%	100.00%
Level 1
Asset category
Fair value of total plan assets	$ 1.5	$ 0.1
Level 2
Asset category
Fair value of total plan assets	$ 34.7	$ 28.9
Global equity
Asset category
Target Allocation	40.00%	40.00%
Fair value of total plan assets	$ 14.0	$ 11.6
Percentage of Plan Assets	38.70%	40.00%
Global equity | Level 2
Asset category
Fair value of total plan assets	$ 14.0	$ 11.6
Fixed income
Asset category
Target Allocation	40.00%	40.00%
Fair value of total plan assets	$ 12.8	$ 10.9
Percentage of Plan Assets	35.40%	37.60%
Fixed income | Level 2
Asset category
Fair value of total plan assets	$ 12.8	$ 10.9
Other
Asset category
Target Allocation	20.00%	20.00%
Fair value of total plan assets	$ 7.9	$ 6.4
Percentage of Plan Assets	21.80%	22.10%
Other | Level 2
Asset category
Fair value of total plan assets	$ 7.9	$ 6.4
Cash
Asset category
Fair value of total plan assets	$ 1.5	$ 0.1
Percentage of Plan Assets	4.10%	0.30%
Cash | Level 1
Asset category
Fair value of total plan assets	$ 1.5	$ 0.1

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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