Shareowners' Deficit Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance			$ (209.7)
Reclassifications, net			4.4
Remeasurement of benefit obligations	7.3	0	7.3		0
Foreign currency loss	0.1	0	(0.1)		0
Ending balance	(198.1)		(198.1)
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			4.4	[1]
Remeasurement of benefit obligations			7.3
Foreign currency loss			0
Ending balance	$ (197.9)		$ (197.9)

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