Debt (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended		1 Months Ended
	Jun. 03, 2013	Aug. 29, 2014	Jan. 31, 2015	Nov. 01, 2014	Nov. 02, 2013	Apr. 30, 2011	Jun. 30, 2013	Jul. 22, 2014	Apr. 24, 2013
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Aug. 29, 2014
Derivative, Inception Date				Oct. 28, 2014	Apr. 24, 2013
Debt, covenant compliance			compliant with these covenants
Debt Instrument, Covenant Description			The Term Loan Agreement contained a consolidated leverage ratio covenant of total consolidated funded debt to consolidated earnings before interest, taxes, depreciation, and amortization (EBITDA) of not greater than 3.0 to 1.0.
Short-term Debt								$ 2,000,000,000
Term Loan Interest Rate			interest at the Eurodollar Rate (as defined in the Term Loan Agreement) plus 1.00% (1.16% as of August 2, 2014). Payments of the principal amounts of revolving loans under the Term Loan Agreement were due no later than October 20, 2014
Gain on Termination of Rate Lock Agreement	11,000,000
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Long-term Debt, Maturities, Repayments of Principal after Year Five			500,000,000
Swap, Payable [Member]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Company's principle payments related to its long-term debt obligations in 2016			375,000,000
Senior Unsecured Three Percent Debt [Member]
Debt Instrument [Line Items]
Net proceeds of notes offering						370,500,000
Debt Instrument, Maturity Date						Apr. 15, 2016
Semi-annual fixed interest payments						semi-annual fixed interest payments due on April 15 and October 15 of each year, commencing October 15, 2011
2.875% Senior unsecured notes due June 1, 2023 [Member]
Debt Instrument [Line Items]
Net proceeds of notes offering	493,900,000
Debt Instrument, Maturity Date							Jun. 01, 2023
Semi-annual fixed interest payments							semi-annual fixed interest payments due on June 1 and December 1 of each year, commencing December 1, 2013
Fair Value, Measurements, Nonrecurring [Member] | Senior Unsecured Three Percent Debt [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued for notes						375,000,000
Interest rate to be paid on long term notes						3.00%
Fair Value, Measurements, Nonrecurring [Member] | 2.875% Senior unsecured notes due June 1, 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal amount issued for notes	$ 500,000,000
Interest rate to be paid on long term notes	2.875%
Fair Value, Measurements, Nonrecurring [Member] | 10 year US Treasury rate of 1.7845% [Member]
Debt Instrument [Line Items]
Interest rate to be paid on long term notes									0.00%
Senior Unsecured Three Percent Debt [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance			compliant with these covenants