Employee Pension And Other Postretirement Plans (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Immediate recognition of net (gain) loss	$ (83.0)	$ (27.8)	$ 49.6	$ (83.0)	$ 21.8	$ 94.7
Net periodic benefit cost				(87.9)	26.7	92.5
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost				4.8	3.6	3.2
Interest cost				32.3	34.0	38.6
Expected return on plan assets				(43.0)	(42.1)	(43.0)
Amortization of prior service cost (credit)				0	0	0
Immediate recognition of net (gain) loss				(80.6)	23.4	96.1
Settlement, curtailment or termination benefit loss (gain)				0	6.7	(0.3)
Net periodic benefit cost				(86.5)	25.6	94.6
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost				0.7	0.8	0.9
Interest cost				1.1	1.4	1.8
Expected return on plan assets				0	0	0
Amortization of prior service cost (credit)				(0.8)	(0.2)	(3.4)
Immediate recognition of net (gain) loss				(2.4)	(1.6)	(1.4)
Settlement, curtailment or termination benefit loss (gain)				0	0.7	0
Net periodic benefit cost				$ (1.4)	$ 1.1	$ (2.1)