Postretirement Benefits (Tables)

3 Months Ended

Jan. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended January 31,
	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2015			2014			2015			2014
Service cost for benefits earned during the period	$	3		$	4		$	1		$	1
Interest on obligation	36			39			18			17
Amortization of cumulative loss	25			24			10			4
Amortization of prior service benefit	—			—			(1		)	(1		)
Premiums on pension insurance	1			—			—			—
Expected return on assets	(49		)	(48		)	(7		)	(8		)
Net postretirement benefits expense	$	16		$	19		$	21		$	13