Fair Value (Details Textual) (USD $)			36 Months Ended		1 Months Ended					1 Months Ended
	Aug. 02, 2014	Nov. 02, 2013	Oct. 30, 2010 Loans Payable [Member]	Dec. 22, 2010 Loans Payable [Member]	Jun. 30, 2009 5.0% Senior unsecured notes due July 1, 2014 [Member]	Apr. 30, 2011 3.0% Senior unsecured notes due April 15, 2016 [Member]	Jun. 30, 2013 2.875% Senior unsecured notes due June 1, 2023 [Member]	Aug. 02, 2014 Fair Value, Measurements, Recurring [Member]	Nov. 02, 2013 Fair Value, Measurements, Recurring [Member]	Jun. 30, 2009 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 5.0% Senior unsecured notes due July 1, 2014 [Member]	Aug. 02, 2014 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 3.0% Senior unsecured notes due April 15, 2016 [Member]	Nov. 02, 2013 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 3.0% Senior unsecured notes due April 15, 2016 [Member]	Apr. 30, 2011 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 3.0% Senior unsecured notes due April 15, 2016 [Member]	Aug. 02, 2014 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 2.875% Senior unsecured notes due June 1, 2023 [Member]	Nov. 02, 2013 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 2.875% Senior unsecured notes due June 1, 2023 [Member]	Jun. 03, 2013 Financial Instruments Not Recorded at Fair Value on a Recurring Basis [Member] 2.875% Senior unsecured notes due June 1, 2023 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized cost of the Company's investments classified as available for sale								$ 3,600,000,000	$ 3,800,000,000
Fair value of the long-term debt											388,100,000	392,800,000		479,900,000	466,000,000
Aggregate principal amount of debt				145,000,000						375,000,000			375,000,000			500,000,000
Interest rate to be paid on long term notes										5.00%			3.00%			2.875%
Debt Instrument, Frequency of Periodic Payment					semi-annual fixed interest payments due on January 1 and July 1 of each year, commencing January 1, 2010	semi-annual fixed interest payments due on April 15 and October 15 of each year, commencing October 15, 2011	semi-annual fixed interest payments due on June 1 and December 1 of each year, commencing December 1, 2013
Debt Instrument, Maturity Date			Dec. 22, 2013		Jul. 01, 2014	Apr. 15, 2016	Jun. 01, 2023			Jul. 01, 2014
Fair Value (Textual) [Abstract]
Cash and held to maturity investments	157,100,000	45,600,000
Short-term Debt	$ 2,000,000,000