Shareowners' Deficit Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance			$ (209.7)
Reclassifications, net			6.5
Remeasurement of benefit obligations	22.7	0	30.0		0
Foreign currency loss	0	0.1	(0.1)		0.1
Ending balance	(173.3)		(173.3)
Accumulated Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance			(0.1)
Reclassifications, net			0
Remeasurement of benefit obligations			0
Foreign currency loss			(0.1)
Ending balance	(0.2)		(0.2)
Accumulated Defined Benefit Plans Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance			(209.6)
Reclassifications, net			6.5	[1]
Remeasurement of benefit obligations			30.0
Foreign currency loss			0
Ending balance	$ (173.1)		$ (173.1)

[1] These reclassifications are included in the components of net period pension and postretirement benefit costs. See Note 7 for additional details.