CONDENSED CONSOLIDATED STATEMENT OF EQUITY Statement - USD ($) $ in Millions	Total	ESI Group SA	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common	Retained Earnings [Member]	AOCI Including Portion Attributable to Noncontrolling Interest [Member]	Noncontrolling Interest ESI Group SA
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 691
Common Stock, Shares, Outstanding beginning at Oct. 31, 2023			199,771,000
Treasury Stock, Shares beginning at Oct. 31, 2023					(25,449,000)
Stockholders' Equity, Balance beginning at Oct. 31, 2023	4,654	$ 0	$ 2	$ 2,487	$ (2,980)	$ 5,611	$ (466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			1,199,000
Issuance of common stock	65			65
Taxes related to net share settlement of equity awards	(31)			(31)
Share-based compensation	$ 112			112
Treasury Stock, Shares, Acquired	(2,000,882)				(2,001,000)
Repurchase of common stock, including excise tax	$ (290)				$ (290)
Net income	687					687
Other comprehensive income (loss), net of tax	29						29
Net Income (Loss) Attributable to Noncontrolling Interest								$ 4
Noncontrolling Interest, Increase from Business Combination	458							458
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	458			(4)				$ (462)
Common Stock, Shares, Outstanding ending at Jul. 31, 2024			200,970,000
Treasury Stock, Shares ending at Jul. 31, 2024					(27,450,000)
Stockholders' Equity, Balance ending at Jul. 31, 2024	5,230	0	$ 2	2,637	$ (3,270)	6,298	(437)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	389
Common Stock, Shares, Outstanding beginning at Apr. 30, 2024			200,655,000
Treasury Stock, Shares beginning at Apr. 30, 2024					(26,376,000)
Stockholders' Equity, Balance beginning at Apr. 30, 2024	4,903	0	$ 2	2,580	$ (3,119)	5,909	(469)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			315,000
Issuance of common stock	32			32
Taxes related to net share settlement of equity awards	(3)			(3)
Share-based compensation	28			28
Treasury Stock, Shares, Acquired					(1,074,000)
Repurchase of common stock, including excise tax	(151)				$ (151)
Net income	389					389
Other comprehensive income (loss), net of tax	32						32
Common Stock, Shares, Outstanding ending at Jul. 31, 2024			200,970,000
Treasury Stock, Shares ending at Jul. 31, 2024					(27,450,000)
Stockholders' Equity, Balance ending at Jul. 31, 2024	5,230	$ 0	$ 2	2,637	$ (3,270)	6,298	(437)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 617
Common Stock, Shares, Outstanding beginning at Oct. 31, 2024			201,008,000
Treasury Stock, Shares beginning at Oct. 31, 2024	28,400,000				(28,424,000)
Stockholders' Equity, Balance beginning at Oct. 31, 2024	$ 5,105		$ 2	2,664	$ (3,422)	6,225	(364)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			1,066,000
Issuance of common stock	63			63
Taxes related to net share settlement of equity awards	(38)			(38)
Share-based compensation	$ 130			130
Treasury Stock, Shares, Acquired	(1,794,568)				(1,795,000)
Repurchase of common stock, including excise tax	$ (276)				$ (276)
Net income	617					617
Other comprehensive income (loss), net of tax	$ 69						69
Common Stock, Shares, Outstanding ending at Jul. 31, 2025			202,074,000
Treasury Stock, Shares ending at Jul. 31, 2025	30,200,000				(30,219,000)
Stockholders' Equity, Balance ending at Jul. 31, 2025	$ 5,670		$ 2	2,819	$ (3,698)	6,842	(295)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	191
Common Stock, Shares, Outstanding beginning at Apr. 30, 2025			201,704,000
Treasury Stock, Shares beginning at Apr. 30, 2025					(29,914,000)
Stockholders' Equity, Balance beginning at Apr. 30, 2025	5,477		$ 2	2,765	$ (3,648)	6,651	(293)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			370,000
Issuance of common stock	32			32
Taxes related to net share settlement of equity awards	(9)			(9)
Share-based compensation	31			31
Treasury Stock, Shares, Acquired					(305,000)
Repurchase of common stock, including excise tax	(50)				$ (50)
Net income	191					191
Other comprehensive income (loss), net of tax	$ (2)						(2)
Common Stock, Shares, Outstanding ending at Jul. 31, 2025			202,074,000
Treasury Stock, Shares ending at Jul. 31, 2025	30,200,000				(30,219,000)
Stockholders' Equity, Balance ending at Jul. 31, 2025	$ 5,670		$ 2	$ 2,819	$ (3,698)	$ 6,842	$ (295)