Retirement and Post-Retirement Benefit Plans (Tables)

9 Months Ended

Jul. 31, 2017

Retirement Benefits [Abstract]

Summary of Net Benefit Cost

	Three months ended July 31,
	Non-U.S. Defined Benefit Plans						Post-Retirement Benefit Plans
	2017			2016			2017			2016
	In millions
Service cost	$	37		$	50		$	1		$	1
Interest cost	54			78			1			2
Expected return on plan assets	(138		)	(165		)	—			(1		)
Amortization and deferrals:
Actuarial loss (gain)	61			56			(1		)	(1		)
Prior service benefit	(4		)	(5		)	—			—
Net periodic benefit cost	10			14			1			1
Settlement loss	6			1			—			—
Special termination benefits	1			1			—			—
Plan expense allocation	—			(4		)	—			—
Net benefit cost from continuing operations	17			12			1			1
Summary of net benefit cost:
Continuing operations	17			12			1			1
Discontinued operations	—			25			—			—
Net benefit cost	$	17		$	37		$	1		$	1

	Nine months ended July 31,
	Non-U.S. Defined Benefit Plans						Post-Retirement Benefit Plans
	2017			2016			2017			2016
	In millions
Service cost	$	107		$	150		$	3		$	3
Interest cost	156			236			3			6
Expected return on plan assets	(402		)	(496		)	—			(2		)
Amortization and deferrals:
Actuarial loss (gain)	201			165			(3		)	(3		)
Prior service benefit	(12		)	(14		)	—			—
Net periodic benefit cost	50			41			3			4
Settlement loss	9			2			—			—
Special termination benefits	3			4			—			—
Plan expense allocation	(15		)	(8		)	(1		)	—
Net benefit cost from continuing operations	47			39			2			4
Summary of net benefit cost:
Continuing operations	47			39			2			4
Discontinued operations	79			65			1			—
Net benefit cost	$	126		$	104		$	3		$	4