Retirement Benefits (Tables)

3 Months Ended

Feb. 28, 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
	February 28, 2014			February 28, 2013			February 28, 2014			February 28, 2013
	(In millions)
Service cost	$	2.2		$	1.3		$	—		$	—
Interest cost on benefit obligation		16.8			15.2			0.6			0.6
Assumed return on plan assets		(23.2	)		(24.1	)		—			—
Amortization of prior service credits		—			—			(0.2	)		(0.2	)
Recognized net actuarial losses (gains)		13.4			23.6			(0.7	)		(0.5	)
Retirement benefit expense (income)	$	9.2		$	16.0		$	(0.3	)	$	(0.1	)