Financing Arrangements (Details Textuals) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended							1 Months Ended	12 Months Ended							1 Months Ended	12 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010	May 31, 2006 1% Sr. Convertible Notes due 2013 [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] exercise_dates year	Jan. 02, 2011 1% Sr. Convertible Notes due 2013 [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] Conversion Period One [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] Conversion Period Two [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] Condition One [Member] Conversion Period One [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] Condition Two [Member] Conversion Period One [Member]	Jan. 01, 2012 1% Sr. Convertible Notes due 2013 [Member] Condition Three [Member] Conversion Period One [Member]	Aug. 31, 2010 1.5% Sr. Convertible Notes due 2017 [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] exercise_dates year	Jan. 02, 2011 1.5% Sr. Convertible Notes due 2017 [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] Conversion Period One [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] Conversion Period Two [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] Condition One [Member] Conversion Period One [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] Condition Two [Member] Conversion Period One [Member]	Jan. 01, 2012 1.5% Sr. Convertible Notes due 2017 [Member] Condition Three [Member] Conversion Period One [Member]	Mar. 31, 2010 1% Convertible Notes due 2035 [Member]	Jan. 01, 2012 1% Convertible Notes due 2035 [Member]	Apr. 03, 2010 1% Convertible Notes due 2035 [Member]	Mar. 15, 2010 1% Convertible Notes due 2035 [Member]
Debt Instrument
Convertible long-term debt, par value				$ 1,150,000,000	$ 1,150,000,000	$ 1,150,000,000						$ 1,000,000,000	$ 1,000,000,000	$ 1,000,000,000								$ 75,000,000
Outstanding Convertible Note Redemption Price																							1,000
Convertible Senior Notes, issuance date				May 2006								August 2010
Convertible Senior Notes, due date				May 15, 2013								Aug. 15, 2017
Convertible senior notes, interest rate				1.00%								1.50%
Initial conversion rate, number of share converted				12.1426								19.0931
Conversion of notes, base conversion price				1,000								1,000									1,000
Initial conversion price per share				$ 82.36								$ 52.37
Net proceeds from the offering of the Notes due				1,130,000,000								981,000,000
Debt Instrument Face Amount After Redemption					928,100,000
Principal amount of the liability component				753,500,000								706,000,000
Effective interest rate on the liability component				7.40%	7.40%	7.40%						6.85%	6.85%	6.85%
Carrying value of the equity component				396,500,000	394,300,000	396,500,000						294,000,000	294,000,000	294,000,000
Debt Instrument, Unamortized Discount					75,915,000	156,801,000							247,235,000	282,167,000
Remaining amortization period of convertible debt, in years					1.4								5.6
Debt Instrument, Date of First Required Payment					November 15, 2006								February 15, 2011
Debt Instrument, Frequency of Periodic Payment					May 15 and November 15 of each year								February 15 and August 15 of each year
Debt Related Commitment Fees and Debt Issuance Costs				24,500,000								19,000,000
Adjustment To Additional Paid In Capital Debt Issuance Cost				8,700,000								5,600,000
Unamortized Debt Issuance Expense	12,992,000	18,091,000		15,800,000	2,500,000							13,400,000	10,600,000
Conversion Information
Convertible note conversion period							may be converted on any day prior to the close of business on the scheduled trading day immediately preceding February 15, 2013	On and after February 15, 2013 until the close of business on the scheduled trading day immediately preceding the maturity date of May 15, 2013, holders may convert their notes at any time							may be converted on any day prior to the close of business on the scheduled trading day immediately preceding May 15, 2017	On and after May 15, 2017 until the close of business on the second scheduled trading day immediately preceding the maturity date of August 15, 2017, holders may convert their notes at any time
Convertible notes conversion period under given condition									during the five business-day period after any five consecutive trading-day period (the “measurement period”) in which the trading price per note for each day of such measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such day	during any calendar quarter after the calendar quarter ending June 30, 2006, if the last reported sale price of the Company’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeds 120% of the applicable conversion price in effect on the last trading day of the immediately preceding calendar quarter	upon the occurrence of specified corporate transactions						during the five business-day period after any five consecutive trading-day period (the “measurement period”) in which the trading price per note for each day of such measurement period was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such day	during any calendar quarter after the calendar quarter ending September 30, 2010, if the last reported sale price of the Company’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeds 130% of the applicable conversion price in effect on the last trading day of the immediately preceding calendar quarter	upon the occurrence of specified corporate transactions
Conversion value of convertible notes					equal to the conversion rate multiplied by the volume weighted average price of the Company’s common stock during a specified period following the conversion date								equal to the conversion rate multiplied by the volume weighted average price of the Company’s common stock during a specified period following the conversion date
Payment mode for the conversion value of convertible notes due					1) cash equal to the lesser of the principal amount of the note or the conversion value, as defined, and 2) to the extent the conversion value exceeds the principal amount of the note, common stock (plus cash in lieu of any fractional shares of common stock)								1) cash equal to the lesser of the principal amount of the note or the conversion value, as defined, and 2) to the extent the conversion value exceeds the principal amount of the note, common stock (plus cash in lieu of any fractional shares of common stock)
Bond Redemption
Extinguishment of Debt, Amount					221,900,000
Total consideration related to principal amount of debt redeemed					211,119,000															75,000,000
Net Proceeds From Warrants And Bond Hedge Due To Redemption					300,000
Convertible Bond Hedge
Number of shares initially agreed to be purchased from counterparties				14,000,000								19,100,000
Bond hedge options, exercise price				$ 82.36								$ 52.37
Number of shares an entity can purchase from counterparties net of redemption					11,300,000
Transaction Cost of Convertible Bond Hedge Accounted for Equity Transaction	(1,494,000)	292,900,000	0	386,100,000								292,900,000
Tax benefit from defered tax asset related to the convertible bond hedge				800,000								1,700,000
Number of shares purchased under bond hedge					0								0
Warrants
Exercise price of warrants	$ 225.00			$ 95.03								$ 73.33
Expected life of warrants (years)					1.6								6.0
Number of separate components of warrants					20								40
Expiry period of Warrants					20 different dates from August 23, 2013 through September 20, 2013								40 different dates from November 13, 2017 through January 10, 2018
Proceeds from issuance of warrants				308,700,000								188,100,000
Number of warrants exercised					0								0
Interest Payable																							$ 400,000