Stockholders' Deficit (Tables)

9 Months Ended

Jul. 31, 2025

Stockholders' Equity Note [Abstract]

Schedule of Changes and Reclassifications Related to Other Comprehensive (Loss) Income, Net of Taxes

Changes and reclassifications related to Accumulated Other Comprehensive Loss, net of taxes

	Three months ended July 31				Nine months ended July 31
	2025		2024		2025		2024
	In millions
Other comprehensive income (loss), net of taxes:
Unrealized components of available-for-sale debt securities
Balance at the beginning of period	$	20	$	11	$	14	$	7
Unrealized gains arising during the period	5		3		11		7
Tax effects on change in unrealized components of available-for-sale securities	(1)		(1)		(1)		(1)
Unrealized components of available-for-sale debt securities, net of taxes	4		2		10		6
Balance at the end of period	$	24	$	13	$	24	$	13
Unrealized components of cash flow hedges
Balance at the beginning of period	$	(393)	$	89	$	47	$	230
Unrealized gains (losses) arising during the period	59		(36)		(301)		(47)
Losses (gains) reclassified into earnings	202		(87)		11		(251)
Tax effects on change in unrealized components of cash flow hedges	(61)		27		50		61
Unrealized components of cash flow hedges, net of taxes	200		(96)		(240)		(237)
Balance at the end of period	$	(193)	$	(7)	$	(193)	$	(7)
Unrealized components of defined benefit plans
Balance at the beginning of period	$	(488)	$	(423)	$	(496)	$	(437)
Unrealized (losses) gains arising during the period	(7)		—		(8)		13
Amortization of actuarial loss and prior service benefit	5		1		15		5
Curtailments, settlements and other	2		1		2		2
Tax effects on change in unrealized components of defined benefit plans	—		(2)		(1)		(6)
Unrealized components of defined benefit plans, net of taxes	—		—		8		14
Balance at the end of period	$	(488)	$	(423)	$	(488)	$	(423)
Cumulative translation adjustment
Balance at the beginning of period	$	18	$	(9)	$	1	$	(23)
Change in cumulative translation adjustment	(1)		11		16		25
Tax effect on change in cumulative translation adjustment	(1)		—		(1)		—
Cumulative translation adjustment, net of taxes	(2)		11		15		25
Balance at the end of period	$	16	$	2	$	16	$	2
Other comprehensive income (loss)	$	202	$	(83)	$	(207)	$	(192)
Accumulated other comprehensive loss	$	(641)	$	(415)	$	(641)	$	(415)