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	$ 302
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)			884,000
Issuance of common stock	33			33
Taxes related to net share settlement of equity awards	(28)			(28)
Share-based compensation	$ 84			84
Treasury Stock, Shares, Acquired	(926,861)				(927,000)
Repurchase of common stock, including excise tax	$ (139)				$ (139)
Net income	298					298
Other comprehensive income (loss), net of tax	(3)						(3)
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 Apr. 30, 2024			200,655,000
Treasury Stock, Shares ending at Apr. 30, 2024					(26,376,000)
Stockholders' Equity, Balance ending at Apr. 30, 2024	4,903	0	$ 2	2,580	$ (3,119)	5,909	(469)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	126
Common Stock, Shares, Outstanding beginning at Jan. 31, 2024			200,621,000
Treasury Stock, Shares beginning at Jan. 31, 2024					(26,074,000)
Stockholders' Equity, Balance beginning at Jan. 31, 2024	4,817	0	$ 2	2,547	$ (3,073)	5,783	(442)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			34,000
Issuance of common stock	1			1
Share-based compensation	32			32
Treasury Stock, Shares, Acquired					(302,000)
Repurchase of common stock, including excise tax	(46)				$ (46)
Net income	126					126
Other comprehensive income (loss), net of tax	(27)						(27)
Common Stock, Shares, Outstanding ending at Apr. 30, 2024			200,655,000
Treasury Stock, Shares ending at Apr. 30, 2024					(26,376,000)
Stockholders' Equity, Balance ending at Apr. 30, 2024	4,903	$ 0	$ 2	2,580	$ (3,119)	5,909	(469)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 426
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)			696,000
Issuance of common stock	31			31
Taxes related to net share settlement of equity awards	(29)			(29)
Share-based compensation	$ 99			99
Treasury Stock, Shares, Acquired	(1,490,118)				(1,490,000)
Repurchase of common stock, including excise tax	$ (226)				$ (226)
Net income	426					426
Other comprehensive income (loss), net of tax	$ 71						71
Common Stock, Shares, Outstanding ending at Apr. 30, 2025			201,704,000
Treasury Stock, Shares ending at Apr. 30, 2025	29,900,000				(29,914,000)
Stockholders' Equity, Balance ending at Apr. 30, 2025	$ 5,477		$ 2	2,765	$ (3,648)	6,651	(293)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	257
Common Stock, Shares, Outstanding beginning at Jan. 31, 2025			201,681,000
Treasury Stock, Shares beginning at Jan. 31, 2025					(28,873,000)
Stockholders' Equity, Balance beginning at Jan. 31, 2025	5,187		$ 2	2,731	$ (3,497)	6,394	(443)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (shares)			23,000
Issuance of common stock	0			0
Share-based compensation	34			34
Treasury Stock, Shares, Acquired					(1,041,000)
Repurchase of common stock, including excise tax	(151)				$ (151)
Net income	257					257
Other comprehensive income (loss), net of tax	$ 150						150
Common Stock, Shares, Outstanding ending at Apr. 30, 2025			201,704,000
Treasury Stock, Shares ending at Apr. 30, 2025	29,900,000				(29,914,000)
Stockholders' Equity, Balance ending at Apr. 30, 2025	$ 5,477		$ 2	$ 2,765	$ (3,648)	$ 6,651	$ (293)