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CAPITAL STOCK (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 2 Months Ended | |||||||||||||||||||||||||||||||
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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Dec. 31, 2013
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Feb. 21, 2013
Preferred Class A [Member]
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Sep. 30, 2014
Preferred Class A [Member]
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Sep. 30, 2013
Preferred Class A [Member]
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Sep. 30, 2014
Preferred Class A [Member]
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Sep. 30, 2013
Preferred Class A [Member]
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Sep. 08, 2014
Preferred Class A [Member]
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Aug. 01, 2014
Preferred Class A [Member]
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May 01, 2014
Preferred Class A [Member]
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Feb. 03, 2014
Preferred Class A [Member]
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Dec. 31, 2013
Preferred Class A [Member]
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Nov. 01, 2013
Preferred Class A [Member]
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Aug. 01, 2013
Preferred Class A [Member]
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May 01, 2013
Preferred Class A [Member]
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Feb. 11, 2013
Common Stock [Member]
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Sep. 02, 2014
Common Stock [Member]
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Jun. 03, 2014
Common Stock [Member]
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Mar. 03, 2014
Common Stock [Member]
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Dec. 02, 2013
Common Stock [Member]
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Sep. 03, 2013
Common Stock [Member]
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Jun. 03, 2013
Common Stock [Member]
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Mar. 01, 2013
Common Stock [Member]
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Sep. 30, 2014
Common Stock [Member]
Minimum [Member]
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Sep. 30, 2014
Common Stock [Member]
Maximum [Member]
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Sep. 30, 2014
Common Stock from when Mandatory Convertible Preferred Stock Converts on February 1, 2016 [Member]
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Feb. 21, 2013
Depositary Share [Member]
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Sep. 30, 2014
Depositary Share [Member]
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Sep. 08, 2014
Depositary Share [Member]
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Aug. 01, 2014
Depositary Share [Member]
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May 01, 2014
Depositary Share [Member]
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Feb. 03, 2014
Depositary Share [Member]
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Nov. 01, 2013
Depositary Share [Member]
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Aug. 01, 2013
Depositary Share [Member]
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May 01, 2013
Depositary Share [Member]
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| Class of Stock [Line Items] | ||||||||||||||||||||||||||||||||||||||
| Depositary Share Offering included in Depositary Share Issuance | 27,000,000 | |||||||||||||||||||||||||||||||||||||
| Number of Shares included in Depositary Share Issuance due to Exercise of | 2,250,000 | |||||||||||||||||||||||||||||||||||||
| Depositary Share Interest in a Share of 7% Series A Mandatory Convertible Preferred Stock, Class A | 0.025 | |||||||||||||||||||||||||||||||||||||
| Series A Mandatory Convertible Preferred Stock, Class A, Percentage | 7.00% | |||||||||||||||||||||||||||||||||||||
| Convertible Preferred Stock, Shares Issued upon Conversion | 28.1480 | 34.4840 | ||||||||||||||||||||||||||||||||||||
| Convertible Preferred Stock, Shares Issued Upon Conversion per Depositary Share | 0.7037 | |||||||||||||||||||||||||||||||||||||
| Preferred Stock, Liquidation Preference Per Share | $ 1,000 | $ 1,000 | $ 1,000 | $ 25 | ||||||||||||||||||||||||||||||||||
| Common Stock, Par or Stated Value Per Share | $ 0.125 | $ 0.125 | $ 0.125 | $ 0.125 | ||||||||||||||||||||||||||||||||||
| Trading Day Window Determining Number of Common Shares Issuable on Conversion | 20 | |||||||||||||||||||||||||||||||||||||
| Number of Common Shares Mandatory Convertible Stock Converts to on February 1, 2016 | 20,600,000 | 25,200,000 | ||||||||||||||||||||||||||||||||||||
| Net proceeds from issuance of Series A, Mandatory Convertible Preferred Stock, Class A | $ 0 | $ 709.4 | ||||||||||||||||||||||||||||||||||||
| Dividends payable, per share | $ 17.50 | $ 17.50 | $ 17.50 | $ 17.50 | $ 17.50 | $ 17.50 | $ 13.6111 | $ 0.15 | $ 0.150 | $ 0.150 | $ 0.150 | $ 0.150 | $ 0.15 | $ 0.15 | $ 0.44 | $ 0.44 | $ 0.44 | $ 0.440 | $ 0.440 | $ 0.44 | $ 0.34 | |||||||||||||||||
| Dividends, Preferred Stock | $ 12.8 | $ 12.9 | $ 38.4 | $ 35.9 | $ 12.8 | $ 12.9 | $ 38.4 | $ 35.9 | ||||||||||||||||||||||||||||||
| Percentage increase (decrease) in dividends payable | 76.00% | |||||||||||||||||||||||||||||||||||||
| Issuance of common shares, public offering (in shares) | 731,250 | 29,250,000 | ||||||||||||||||||||||||||||||||||||
| Closing price per share (in usd per share) | $ 25 | $ 25 | ||||||||||||||||||||||||||||||||||||