Retirement Benefits (Tables)

9 Months Ended

Aug. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Components of Retirement Benefit Expense (Income)

Components of retirement benefit expense (income) are:

	Pension Benefits						Postretirement Medical and Life Insurance Benefits
	Three months ended August 31,
	2014			2013			2014			2013
	(In millions)
Service cost	$	2.2		$	1.7		$	0.1		$	—
Interest cost on benefit obligation	16.8			15.3			0.6			0.6
Assumed return on plan assets	(23.3		)	(24.1		)	—			—
Amortization of prior service credits	—			—			(0.2		)	(0.2		)
Recognized net actuarial losses (gains)	13.5			23.7			(0.8		)	(0.5		)
Retirement benefit expense (income)	$	9.2		$	16.6		$	(0.3	)	$	(0.1	)

	Pension Benefits						Postretirement Medical and Life Insurance Benefits
	Nine months ended August 31,
	2014			2013			2014			2013
	(In millions)
Service cost	$	6.6		$	4.4		$	0.1		$	0.1
Interest cost on benefit obligation	50.3			45.7			1.9			1.8
Assumed return on plan assets	(69.7		)	(72.3		)	—			—
Amortization of prior service credits	—			—			(0.6		)	(0.6		)
Recognized net actuarial losses (gains)	40.4			71.0			(2.3		)	(1.6		)
Retirement benefit expense (income)	$	27.6		$	48.8		$	(0.9	)	$	(0.3	)