Financial Instruments (Details) (USD $)	Jun. 29, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Notional Amount of Foreign Currency Derivatives	$ 9,300,000
Adjusted Cost	675,492,000	3,511,339,000
Cash and Available for Sale Securities, Amortized Cost Basis	3,507,378,000
Unrealized Gains	3,022,000	95,000
Unrealized Losses	(32,000)	(246,000)
Cash, Fair Value Disclosure	3,510,368,000	3,511,188,000
Cash	2,884,063,000	3,371,933,000
Short-Term Marketable Securities	46,381,000	65,222,000
Long-Term Marketable Securities	579,924,000	74,033,000
Deferred Compensation Plan Assets	73,477,000	72,000,000
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis	98,544,000
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	98,558,000
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis	576,948,000
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	579,924,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	678,482,000
Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	3,279,754,000	3,208,660,000
Unrealized Gains	2,770,000	0
Unrealized Losses	0	0
Cash, Fair Value Disclosure	3,282,524,000	3,208,660,000
Cash	2,761,571,000	3,200,461,000
Short-Term Marketable Securities	12,774,000	8,199,000
Long-Term Marketable Securities	508,179,000	0
Deferred Compensation Plan Assets	69,439,000
Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	130,127,000	137,557,000
Unrealized Gains	252,000	95,000
Unrealized Losses	(32,000)	(246,000)
Cash, Fair Value Disclosure	130,347,000	137,406,000
Cash	24,995,000	6,350,000
Short-Term Marketable Securities	33,607,000	57,023,000
Long-Term Marketable Securities	71,745,000	74,033,000
Deferred Compensation Plan Assets	4,038,000
Cash [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash, Amortized Cost Basis	97,497,000	165,122,000
Unrealized Gains	0	0
Unrealized Losses	0	0
Cash	97,497,000	165,122,000
Short-Term Marketable Securities	0	0
Long-Term Marketable Securities	0	0
Cash [Member] | Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash, Fair Value Disclosure	97,497,000	165,122,000
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	2,734,389,000	3,189,462,000
Unrealized Gains	0	0
Unrealized Losses	0	0
Cash, Fair Value Disclosure	2,734,389,000	3,189,462,000
Cash	2,734,389,000	3,189,462,000
Short-Term Marketable Securities	0	0
Long-Term Marketable Securities	0	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	545,365,000	6,199,000
Unrealized Gains	2,770,000	0
Unrealized Losses	0	0
Cash, Fair Value Disclosure	548,135,000	6,199,000
Cash	27,182,000	0
Short-Term Marketable Securities	12,774,000	6,199,000
Long-Term Marketable Securities	508,179,000	0
Corporate Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost		12,999,000
Unrealized Gains		0
Unrealized Losses		0
Cash, Fair Value Disclosure		12,999,000
Cash		10,999,000
Short-Term Marketable Securities		2,000,000
Long-Term Marketable Securities		0
Corporate Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	76,648,000	87,415,000
Unrealized Gains	232,000	84,000
Unrealized Losses	(25,000)	(230,000)
Cash, Fair Value Disclosure	76,855,000	87,269,000
Cash	0	5,600,000
Short-Term Marketable Securities	20,010,000	22,920,000
Long-Term Marketable Securities	56,845,000	58,749,000
U.S Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	42,433,000	41,167,000
Unrealized Gains	14,000	11,000
Unrealized Losses	(3,000)	(7,000)
Cash, Fair Value Disclosure	42,444,000	41,171,000
Cash	24,995,000	750,000
Short-Term Marketable Securities	5,056,000	25,890,000
Long-Term Marketable Securities	12,393,000	14,531,000
Non-U.S Government Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	10,293,000	8,221,000
Unrealized Gains	5,000	0
Unrealized Losses	(4,000)	(8,000)
Cash, Fair Value Disclosure	10,294,000	8,213,000
Cash	0	0
Short-Term Marketable Securities	7,787,000	8,213,000
Long-Term Marketable Securities	2,507,000	0
Municipal Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	753,000	754,000
Unrealized Gains	1,000	0
Unrealized Losses	0	(1,000)
Cash, Fair Value Disclosure	754,000	753,000
Cash	0	0
Short-Term Marketable Securities	754,000	0
Long-Term Marketable Securities	$ 0	$ 753,000