Retirement and Post-Retirement Benefit Plans (Tables)

3 Months Ended

Jan. 31, 2017

Compensation and Retirement Disclosure [Abstract]

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

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
	2017			2016			2017			2016			2017			2016
	In millions
Service cost	$	—		$	—		$	12		$	12		$	—		$	—
Interest cost	117			136			4			6			4			5
Expected return on plan assets	(169		)	(183		)	(8		)	(12		)	(6		)	(8		)
Amortization and deferrals:
Actuarial loss (gain)	18			14			10			6			(2		)	(3		)
Prior service benefit	—			—			(1		)	(1		)	(5		)	(4		)
Net periodic benefit (credit) cost	(34		)	(33		)	17			11			(9		)	(10		)
Settlement loss	—			1			—			—			—			—
Total periodic benefit (credit) cost	$	(34	)	$	(32	)	$	17		11			$	(9	)	$	(10	)