Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Net operating loss carryforwards
Portion of net operating loss carryforwards, when realized, will be credited to additional paid-in-capital		$ 101.8
Undistributed earnings of certain foreign subsidiaries		220.4
Estimated additional U.S. income or foreign withholding taxes that would have to be provided if earnings of foreign subsidiaries were repatriated to the U.S.		11.0
Increase (decrease) in deferred tax asset valuation allowances		(49.3)	(87.9)	25.8
Valuation allowance attributable to pre-fiscal 2006 windfall stock option deductions		514.7
Net deferred tax valuation allowance release	107.9		107.9
Reconciliation of unrecognized tax benefits
Balance at the beginning of the period		80.7	61.3	64.0
Additions based on the tax positions related to the current year		3.2	23.7	3.4
Reductions for lapse of statute of limitations or for audit settlements		(21.7)	(1.2)	(1.9)
Additions due to foreign currency rate fluctuation		0.6
Reductions due to foreign currency rate fluctuation			(0.7)	(1.5)
Reductions based on state credit expiration		(1.7)
Reductions based on the tax positions related to the prior year		(0.8)		(2.7)
Reductions based on ITC expiration			(2.4)
Balance at the end of the period	80.7	60.3	80.7	61.3
Portion of unrecognized tax benefits, if recognized, would impact the effective tax rate		3.4
Portion of unrecognized tax benefits, if recognized, would impact the valuation allowance		56.9
Accrued interest and penalties related to unrecognized tax benefits	24.1	24.8	24.1
Increase in accrued interest and penalties related to unrecognized tax benefits		1.7
Unrecognized tax benefits that may be recognized during the next twelve months		22.3
Federal
Net operating loss carryforwards
Research and other tax credit carryforwards		88.8
State
Net operating loss carryforwards
Research and other tax credit carryforwards		36.1
Foreign
Net operating loss carryforwards
Research and other tax credit carryforwards		$ 45.1