Fair Value - Textual (Details) - USD ($)	Dec. 05, 2016	Dec. 14, 2015	Jun. 03, 2013	Jan. 28, 2017	Oct. 29, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and held to maturity investments				$ 487,600,000	$ 252,500,000
Principal				3,850,000,000	1,750,000,000
Frequency of periodic payment	semi-annual fixed interest payments due on June 5 and December 5 of each year, commencing June 5, 2017
2.5% Senior unsecured notes due December 5, 2021 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal	$ 400,000,000
Interest rate (as percent)	2.50%
3.125% Senior unsecured notes due December 5, 2023 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal	$ 550,000,000
Interest rate (as percent)	3.125%
3.5% Senior unsecured notes due December 5, 2026 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal	$ 900,000,000
Interest rate (as percent)	3.50%
4.5% Senior unsecured notes due December 5, 2036 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal	$ 250,000,000
Interest rate (as percent)	4.50%
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Frequency of periodic payment		semi-annual fixed interest payments due on June 15 and December 15 of each year, commencing June 15, 2016
Level 1 [Member] | 2.875% Senior unsecured notes due June 1, 2023 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Frequency of periodic payment			semi-annual fixed interest payments due on June 1 and December 1 of each year, commencing December 1, 2013
Level 1 [Member] | 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]
Principal			$ 500,000,000
Interest rate (as percent)			2.875%
Fair value of the long-term debt				491,400,000	501,300,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 3.9% Senior unsecured notes due December 15, 2025 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal		$ 850,000,000
Interest rate (as percent)		3.90%
Fair value of the long-term debt				866,000,000	901,500,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 5.3% Senior unsecured notes due December 15, 2045 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal		$ 400,000,000
Interest rate (as percent)		5.30%
Fair value of the long-term debt				436,400,000	$ 425,100,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 2.5% Senior unsecured notes due December 5, 2021 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate (as percent)	2.50%
Fair value of the long-term debt				394,900,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 3.125% Senior unsecured notes due December 5, 2023 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate (as percent)	3.125%
Fair value of the long-term debt				543,100,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 3.5% Senior unsecured notes due December 5, 2026 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate (as percent)	3.50%
Fair value of the long-term debt				880,100,000
Level 1 [Member] | Financial instruments not recorded at fair value on a recurring basis [Member] | 4.5% Senior unsecured notes due December 5, 2036 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate (as percent)	4.50%
Fair value of the long-term debt				$ 246,100,000