Investments and Fair Value Measurements-Fin Assets and Liabilities 2 (Details 3) (USD $)	Dec. 29, 2013		Dec. 30, 2012
Financial assets measured at fair value on a recurring basis
Short-term marketable securities	$ 1,919,611,000		$ 1,880,034,000
Long-term marketable securities	3,179,471,000		2,835,931,000
Other current assets	166,885,000		260,879,000
Other current assets and other non-current assets	167,430,000		153,810,000
Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Total financial assets	0		0
Financial Liabilities measured at fair value on a recurring basis
Total financial liabilities	0		0
Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Total financial assets	5,906,393,000		5,548,126,000
Financial Liabilities measured at fair value on a recurring basis
Total financial liabilities	45,859,000		13,584,000
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Total financial assets	920,557,000		610,129,000
Financial Liabilities measured at fair value on a recurring basis
Total financial liabilities	0		0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Total financial assets	4,985,836,000		4,937,997,000
Financial Liabilities measured at fair value on a recurring basis
Total financial liabilities	45,859,000		13,584,000
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Total financial assets	0		0
Financial Liabilities measured at fair value on a recurring basis
Total financial liabilities	0		0
Other Current Accued Liabilities [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities measured at fair value on a recurring basis
Other Current Accrued Liabilities, Fair Value Disclosure	45,741,000		13,584,000
Other Current Accued Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other Current Accrued Liabilities, Fair Value Disclosure	0		0
Other Current Accued Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other Current Accrued Liabilities, Fair Value Disclosure	45,741,000		13,584,000
Other Current Accued Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other Current Accrued Liabilities, Fair Value Disclosure	0		0
Non-current Liabilities [Member] | Fair Value, Measurements, Recurring [Member]
Financial Liabilities measured at fair value on a recurring basis
Other liabilities, Fair Value Disclosure	118,000		0
Non-current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other liabilities, Fair Value Disclosure	0		0
Non-current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other liabilities, Fair Value Disclosure	118,000		0
Non-current Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial Liabilities measured at fair value on a recurring basis
Other liabilities, Fair Value Disclosure	0		0
Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Cash equivalents	806,534,000	[1]	812,103,000	[1]
Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Cash equivalents	773,435,000	[1]	582,743,000	[1]
Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Cash equivalents	33,099,000	[1]	229,360,000	[1]
Cash Equivalents [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Cash equivalents	0	[1]	0	[1]
Short-term marketable securities [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Short-term marketable securities	1,919,611,000		1,880,034,000
Short-term marketable securities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Short-term marketable securities	15,090,000		16,589,000
Short-term marketable securities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Short-term marketable securities	1,904,521,000		1,863,445,000
Short-term marketable securities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Short-term marketable securities	0		0
Long term Marketable Securities [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Long-term marketable securities	3,179,471,000		2,835,931,000
Long term Marketable Securities [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Long-term marketable securities	132,032,000		10,797,000
Long term Marketable Securities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Long-term marketable securities	3,047,439,000		2,825,134,000
Long term Marketable Securities [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Long-term marketable securities	0		0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Other current assets	777,000		19,064,000
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets	0		0
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets	777,000		19,064,000
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets	0		0
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets measured at fair value on a recurring basis
Other current assets and other non-current assets	0		994,000
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets and other non-current assets	0		0
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets and other non-current assets	0		994,000
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis
Other current assets and other non-current assets	$ 0		$ 0

[1] Cash equivalents exclude cash of $179.7 million and $183.4 million included in Cash and cash equivalents on the Consolidated Balance Sheets as of December 29, 2013 and December 30, 2012, respectively.