Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Parent [Member]	Parent [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Noncontrolling Interest [Member]
Shares, Issued at Oct. 31, 2018			177,937
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2018	$ 4,768,912		$ 1,779	$ 727,053	$ 5,161,551		$ (1,130,878)	$ 694	$ 4,760,199		$ 8,713
Net income	$ 590,007				590,007				590,007
Number of shares purchased	6,619
Purchase of treasury stock, value	$ (233,523)						(233,523)		(233,523)
Exercise of stock options and stock-based compensation issuances, shares
Exercise of stock options and stock-based compensation issuances, value	16,024			(26,368)			42,392		16,024
Employee stock purchase issuances, shares
Employee stock purchase issuances, value	1,323			14			1,309		1,323
Stock-based compensation	26,180			26,180					26,180
Dividends, Common Stock, Cash	$ (63,882)				(63,882)				(63,882)
Treasury Stock, Shares, Retired	25,000		(25,000)
Treasury Stock, Retired, Cost Method, Amount	$ 0		$ (250)		(895,267)		895,517		0
Other Comprehensive Income (Loss)	(6,525)							(6,525)	(6,525)
Income (loss) attributable to noncontrolling interest	(19)								0		(19)
Capital contributions	38,183								0		38,183
Shares, Issued at Oct. 31, 2019			152,937
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2019	5,118,693	$ (17,987)	$ 1,529	726,879	4,774,422	$ (17,987)	(425,183)	(5,831)	5,071,816	$ (17,987)	46,877
Net income	$ 446,624				446,624				446,624
Number of shares purchased	15,952
Purchase of treasury stock, value	$ (634,057)						(634,057)		(634,057)
Exercise of stock options and stock-based compensation issuances, shares
Exercise of stock options and stock-based compensation issuances, value	23,439			(33,263)			56,702		23,439
Employee stock purchase issuances, shares
Employee stock purchase issuances, value	1,414			(670)			2,084		1,414
Stock-based compensation	24,326			24,326					24,326
Dividends, Common Stock, Cash	(56,960)				(56,960)				(56,960)
Other Comprehensive Income (Loss)	(1,367)							(1,367)	(1,367)
Income (loss) attributable to noncontrolling interest	(10)								0		(10)
Capital contributions	5,374								0		5,374
Shares, Issued at Oct. 31, 2020			152,937
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2020	4,927,476		$ 1,529	717,272	5,164,086		(1,000,454)	(7,198)	4,875,235		52,241
Net income	$ 833,627				833,627				833,627
Number of shares purchased	7,421
Purchase of treasury stock, value	$ (378,256)						(378,256)		(378,256)
Exercise of stock options and stock-based compensation issuances, shares
Exercise of stock options and stock-based compensation issuances, value	9,045			(26,326)			35,371		9,045
Employee stock purchase issuances, shares
Employee stock purchase issuances, value	1,438			320			1,118		1,438
Stock-based compensation	23,187			23,187					23,187
Dividends, Common Stock, Cash	$ (76,964)				(76,964)				(76,964)
Treasury Stock, Shares, Retired	25,000		(25,000)
Treasury Stock, Retired, Cost Method, Amount	$ 0		$ (250)		(950,315)		950,565		0
Other Comprehensive Income (Loss)	8,307							8,307	8,307
Income (loss) attributable to noncontrolling interest	(6,770)								0		(6,770)
Capital contributions									0
Shares, Issued at Oct. 31, 2021			127,937
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Oct. 31, 2021	5,340,455	$ (595)	$ 1,279	$ 714,453	$ 4,969,839	$ (595)	$ (391,656)	$ 1,109	$ 5,295,024	$ (595)	45,431
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ (40)										$ (40)