Label	Element	Value
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	$ (3,000,000.0)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	(3,300,000)
Convertible Preferred Stock Converted to Other Securities	us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities	200,000
AOCI Attributable to Parent [Member]
Equity, Attributable to Parent	us-gaap_StockholdersEquity	(62,800,000)
Equity, Attributable to Parent	us-gaap_StockholdersEquity	(64,500,000)
Equity, Attributable to Parent	us-gaap_StockholdersEquity	(64,100,000)
Additional Paid-in Capital [Member]
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	4,300,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	2,800,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	1,400,300,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	1,419,600,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	1,403,100,000
Common Stock [Member]
Equity, Attributable to Parent	us-gaap_StockholdersEquity	900,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	1,000,000.0
Equity, Attributable to Parent	us-gaap_StockholdersEquity	1,000,000.0
Convertible Preferred Stock Converted to Other Securities	us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities	100,000
Treasury Stock, Common [Member]
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	(6,100,000)
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	(7,300,000)
Equity, Attributable to Parent	us-gaap_StockholdersEquity	10,000,000.0
Equity, Attributable to Parent	us-gaap_StockholdersEquity	25,300,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	16,000,000.0
Convertible Preferred Stock Converted to Other Securities	us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities	100,000
Retained Earnings [Member]
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	5,000,000.0
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	5,100,000
Equity, Attributable to Parent	us-gaap_StockholdersEquity	(1,474,200,000)
Equity, Attributable to Parent	us-gaap_StockholdersEquity	(1,508,300,000)
Equity, Attributable to Parent	us-gaap_StockholdersEquity	$ (1,513,400,000)