Business Acquisition (Details Textuals) (USD $)	12 Months Ended			3 Months Ended		6 Months Ended	3 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012	Dec. 28, 2014	Jun. 29, 2014	Dec. 28, 2014	Sep. 29, 2013	Jul. 23, 2014
Business Acquisition
Payments to Acquire Businesses, Net of Cash Acquired	$ 1,063,798,000	$ 304,320,000	$ 69,629,000
Share Price	$ 101.31			$ 101.31		$ 101.31		$ 94.35
Goodwill, Purchase Accounting Adjustments	181,000	(601,000)
Business Acquisition, Transaction Costs
Business Acquisition, Transaction Costs	20,941,000
Employee Stock Option [Member]
Business Acquisition
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	427,000	183,000
Weighted Average Grant Date Fair Value	$ 18.96	$ 16.26	$ 16.45
Restricted Stock Units (RSUs) [Member]
Business Acquisition
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	445,000		59,000
Fusion-io Inc [Member]
Business Acquisition
Name of acquired entity	Fusion‑io, Inc.
Effective date of acquisition agreement				Jul. 23, 2014
Percentage acquired in business combination	100.00%			100.00%		100.00%
Description of acquired entity				a leading developer of flash-based, Peripheral Component Interconnect Express (“PCIe”) hardware and software solutions that enhance application performance in enterprise and hyperscale data centers
Description of primary reason for business combination				The Company expects this acquisition to accelerate its efforts to enable the flash-transformed data center, helping companies better manage increasingly heavy data workloads at a lower total cost of ownership.
Business Combination, Consideration Transferred	1,263,543,000
Payments to Acquire Businesses, Net of Cash Acquired	1,070,000,000
Business Acquisition, Share Price	$ 11.25			$ 11.25		$ 11.25
Weighted Average Grant Date Fair Value				$ 35.02
Equity Issued in Business Combination, Fair Value Disclosure	49,900,000			49,900,000		49,900,000
Weighted-Average amortization period of intangible assets (in years)	4 years 6 months
Goodwill, Purchase Accounting Adjustments	29,300,000
Business Acquisition, Acquired In-process Research and Development [Abstract]
Fair Value Inputs, Discount Rate	17.50%
Business Acquisition, Transaction Costs
Business Acquisition, Transaction Costs	9,100,000
Fusion-io Inc [Member] | Direct Acquisition Cost [Member]
Business Acquisition, Transaction Costs
Business Acquisition, Transaction Costs	11,700,000				2,600,000	9,100,000
Fusion-io Inc [Member] | Employee Stock Option [Member]
Business Acquisition
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				427,388
Fusion-io Inc [Member] | Restricted Stock Units (RSUs) [Member]
Business Acquisition
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				445,072
SMART Storage Systems [Member]
Business Acquisition
Name of acquired entity		SMART Storage Systems
Effective date of acquisition agreement							Aug. 22, 2013
Percentage acquired in business combination		100.00%
Description of acquired entity							a developer of enterprise solid state drives (“SSDs”)
Description of primary reason for business combination							The Company expects this acquisition to enhance its enterprise storage product portfolio.
Business Combination, Consideration Transferred		305,118,000
Equity Issued in Business Combination, Fair Value Disclosure		6,800,000
Weighted-Average amortization period of intangible assets (in years)		3 years 10 months
Business Acquisition, Other
Business acquisition seller refund		25,500,000
Business acquisition unsettled liability		25,500,000
SMART Storage Systems [Member] | Direct Acquisition Cost [Member]
Business Acquisition, Transaction Costs
Business Acquisition, Transaction Costs		$ 3,100,000
SMART Storage Systems [Member] | Employee Stock Option [Member]
Business Acquisition
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		183,069
Weighted Average Grant Date Fair Value		$ 41.15