Retirement Plans and Postretirement Health Care and Life Insurance Benefits (Tables)

9 Months Ended

Jul. 31, 2012

Retirement Plans and Postretirement Health Care and Life Insurance Benefits [Abstract]

Components of net periodic pension cost

	Three months ended July 31,						Nine months ended July 31,
	2012			2011			2012			2011
Service cost	$	3.4		$	3.1		$	10.2		$	9.3
Interest cost		7.4			7.4			22.2			22.2
Expected return on plan assets		(8.5	)		(9.1	)		(25.5	)		(27.3	)
Amortization of prior service cost, initial net asset and net actuarial gain		3.2			2.5			9.6			7.5
Net periodic pension costs	$	5.5		$	3.9		$	16.5		$	11.7

Components of net periodic cost for the postretirement benefits

	Three months ended July 31,						Nine months ended July 31,
	2012			2011			2012			2011
Service cost	$	—		$	—		$	—		$	—
Interest cost		0.3			0.3			0.9			0.9
Amortization of prior service cost and recognized actuarial gain		(0.4	)		(0.4	)		(1.2	)		(1.2	)
Net periodic cost for postretirement benefits	$	(0.1	)	$	(0.1	)	$	(0.3	)	$	(0.3	)