Summary of Significant Accounting Policies - Earnings Per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 28, 2017	Oct. 29, 2016	Oct. 31, 2015
Earnings per share
Net Income									$ 727,259	$ 861,664	$ 696,878
Undistributed earnings (loss) allocated to participating securities, basic									2,243	0	0
Net income (loss) available to common stockholders, basic									$ 725,016	$ 861,664	$ 696,878
Basic shares:
Weighted average shares outstanding (in shares)	368,043	367,315	341,316	308,786	307,854	307,135	308,790	311,166	346,371	308,736	312,660
Basic earnings per common share (in dollars per share)									$ 2.09	$ 2.79	$ 2.23
Diluted shares:
Weighted average shares outstanding (in shares)	368,043	367,315	341,316	308,786	307,854	307,135	308,790	311,166	346,371	308,736	312,660
Assumed exercise of common stock equivalents (in shares)									4,113	3,572	4,212
Weighted average common and common equivalent shares	372,053	371,159	345,654	313,076	311,633	310,558	312,250	314,793	350,484	312,308	316,872
Earnings per share - Diluted
Income from continuing operations, net of tax (in dollars per share)									$ 2.07	$ 2.76	$ 2.20
Outstanding stock options (in share)									1,527	3,077	2,089