Retirement and Post-Retirement Benefit Plans (Tables)

3 Months Ended

Jan. 31, 2024

Retirement Benefits [Abstract]

Schedule of Components of Pension and Post-Retirement Benefit (Credit)

The components of HP’s pension and post-retirement benefit (credit) cost recognized in the Consolidated Condensed Statements of Earnings were as follows:

	Three months ended January 31
	U.S. Defined Benefit Plans				Non-U.S. Defined Benefit Plans				Post- Retirement Benefit Plans
	2024		2023		2024		2023		2024		2023
	In millions
Service cost	$	—	$	—	$	9	$	9	$	—	$	—
Interest cost	57		54		12		10		4		4
Expected return on plan assets	(61)		(65)		(13)		(13)		(4)		(3)
Amortization and deferrals:
Actuarial loss (gain)	7		5		—		1		(4)		(4)
Prior service cost (credit)	—		—		2		1		(3)		(3)
Net periodic benefit (credit) cost	3		(6)		10		8		(7)		(6)
Settlement loss	—		—		—		1		—		—
Total periodic benefit (credit) cost	$	3	$	(6)	$	10	$	9	$	(7)	$	(6)