Contract with the U.K. National Health Service (Details)	0 Months Ended				3 Months Ended
	Mar. 28, 2013 USD ($)	Mar. 28, 2013 GBP (£)	Aug. 31, 2012 USD ($)	Aug. 31, 2012 GBP (£)	Dec. 30, 2011 USD ($)	Oct. 03, 2014 USD ($)	Oct. 04, 2013 USD ($)	Oct. 04, 2013 GBP (£)	Oct. 04, 2013 Minimum USD ($)	Oct. 04, 2013 Minimum GBP (£)	Oct. 04, 2013 Maximum USD ($)	Oct. 04, 2013 Maximum GBP (£)
Contracts Receivable [Abstract]
Proceed to settle disputed amounts, net of VAT	$ 15,000,000	£ 10,000,000	$ 105,000,000	£ 68,000,000
U.K. National Health (NHS) current contract							75,000,000	47,500,000
Contract Modification, Aggregate Voluntary Decommision Limit							31,000,000	19,600,000
Contract Modification, Voluntary Decommision Limit, Certain Products									300,000	200,000	6,900,000	4,400,000
Change in accounting estimate, reduction in operating income					1,500,000,000
Contract modification, total consideration to be received			120,000,000	78,000,000
Contract modification, amount held in escrow			15,000,000	10,000,000
Contract Modification, Deferred Costs						17,000,000
Contract Modification, Deferred Revenues						$ 188,000,000