Stockholders' Deficit (Tables)

6 Months Ended

Apr. 30, 2024

Stockholders' Equity Note [Abstract]

Schedule of Taxes Related to Other Comprehensive Income (Loss)

Taxes Related to Other Comprehensive Income (Loss)

	Three months ended April 30				Six months ended April 30
	2024		2023		2024		2023
	In millions
Tax effect on change in unrealized components of available-for-sale debt securities:
Tax provision on unrealized losses arising during the period	$	—	$	—	$	—	$	(1)
Tax effect on change in unrealized components of cash flow hedges:
Tax (provision) benefit on unrealized gains (losses) arising during the period	(32)		20		4		126
Tax (benefit) provision on (gains) losses reclassified into earnings	(2)		(41)		30		37
	(34)		(21)		34		163
Tax effect on change in unrealized components of defined benefit plans:
Tax provision on gains arising during the period	(5)		(1)		(3)		(1)
Tax provision on curtailments, settlements and other	(1)		—		(1)		—
	(6)		(1)		(4)		(1)
Tax (provision) benefit on other comprehensive income (loss)	$	(40)	$	(22)	$	30	$	161

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

Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes

	Three months ended April 30				Six months ended April 30
	2024		2023		2024		2023
	In millions
Other comprehensive (loss) income, net of taxes:
Change in unrealized components of available-for-sale debt securities:
Unrealized gains arising during the period	$	—	$	—	$	4	$	3
Change in unrealized components of cash flow hedges:
Unrealized gains (losses) arising during the period	119		(46)		(7)		(563)
(Gains) losses reclassified into earnings	(7)		121		(134)		(135)
	112		75		(141)		(698)
Change in unrealized components of defined benefit plans:
Gains arising during the period	18		5		10		4
Amortization of actuarial loss and prior service benefit(1)	2		—		4		—
Curtailments, settlements and other	—		(1)		—		—
	20		4		14		4
Change in cumulative translation adjustment	(6)		9		14		38
Other comprehensive income (loss), net of taxes	$	126	$	88	$	(109)	$	(653)

(1)These components are included in the computation of net pension and post-retirement benefit (credit) charges in Note 4, “Retirement and Post-Retirement Benefit Plans”.

Schedule of Components of Accumulated Other Comprehensive (Loss) Income, Net of Taxes and Changes

The components of Accumulated other comprehensive (loss) income, net of taxes and changes were as follows:

	Six months ended April 30, 2024
	Net unrealized gains (losses) on available-for-sale debt securities		Net unrealized gains (losses) on cash flow hedges		Unrealized components of defined benefit plans		Change in cumulative translation adjustment		Accumulated other comprehensive loss
	In millions
Balance at beginning of period	$	7	$	230	$	(437)	$	(23)	$	(223)
Other comprehensive gains (losses) before reclassifications	4		(7)		10		14		21
Reclassifications of gain into earnings	—		(134)		4		—		(130)
Balance at end of period	$	11	$	89	$	(423)	$	(9)	$	(332)