Condensed Consolidated Statements of Shareowners' Deficit Statement - USD ($) shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	$ (102.3)	$ (127.9)	$ (75.0)	$ (117.9)
Net loss	(5.5)	(13.8)	(32.4)	(22.1)
Other comprehensive income (loss)	(3.5)	(0.5)	(2.3)	1.2
Shares purchased under employee plans and other			(0.8)	(2.0)
Stock-based compensation	1.6	1.4	3.4	2.6
Dividends on preferred stock	(2.6)	(2.6)	(5.2)	(5.2)
Ending Balance, Shareowners' Equity (Deficit)	(112.3)	(143.4)	(112.3)	(143.4)
Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	$ 129.4	$ 129.4	$ 129.4	$ 129.4
Beginning Balance, Shares	3.1	3.1	3.1	3.1
Ending Balance, Shareowners' Equity (Deficit)	$ 129.4	$ 129.4	$ 129.4	$ 129.4
Ending Balance, Shares	3.1	3.1	3.1	3.1
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	$ 0.5	$ 0.4	$ 0.5	$ 0.4
Beginning Balance, Shares	50.4	42.4	50.2	42.2
Shares issued under employee plans			$ 0.0	$ 0.0
Shares issued under employee plans			0.2	0.2
Ending Balance, Shareowners' Equity (Deficit)	$ 0.5	$ 0.4	$ 0.5	$ 0.4
Ending Balance, Shares	50.4	42.4	50.4	42.4
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	$ 2,678.4	$ 2,562.2	$ 2,680.0	$ 2,565.6
Shares issued under employee plans			0.0	0.0
Shares purchased under employee plans and other			(0.8)	(2.0)
Stock-based compensation	1.6	1.4	3.4	2.6
Dividends on preferred stock	(2.6)	(2.6)	(5.2)	(5.2)
Ending Balance, Shareowners' Equity (Deficit)	2,677.4	2,561.0	2,677.4	2,561.0
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	(2,736.3)	(2,647.9)	(2,709.4)	(2,639.6)
Net loss	(5.5)	(13.8)	(32.4)	(22.1)
Ending Balance, Shareowners' Equity (Deficit)	(2,741.8)	(2,661.7)	(2,741.8)	(2,661.7)
AOCI Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, Shareowners' Equity (Deficit)	(174.3)	(172.0)	(175.5)	(173.7)
Other comprehensive income (loss)	(3.5)	(0.5)	(2.3)	1.2
Ending Balance, Shareowners' Equity (Deficit)	$ (177.8)	$ (172.5)	$ (177.8)	$ (172.5)

Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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