Annual report pursuant to Section 13 and 15(d)

Acquisitions And Other Investments (CLCC Purchase Price Allocation) (Details)

v2.4.0.6
Acquisitions And Other Investments (CLCC Purchase Price Allocation) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Scenario, Previously Reported [Member]
CLCC [Member]
Dec. 31, 2011
Scenario, Adjustment [Member]
CLCC [Member]
Jul. 30, 2010
Scenario, Adjustment [Member]
CLCC [Member]
Dec. 31, 2011
Scenario, Change [Member]
CLCC [Member]
Business Acquisition [Line Items]            
Cash     $ 757.0 $ 757.0 $ 757.0  
Working capital adjustments     17.5 18.9 18.9 1.4
Fair value of total consideration transferred     774.5 775.9   1.4
Product inventories     20.0 20.0    
Other current assets     11.8 11.8    
Land and mineral rights     640.3 639.3   (1.0)
Plant and equipment     111.1 112.3   1.2
Deferred taxes 1,041.8   16.5 15.9   (0.6)
Intangible assets     7.5 7.5    
Other non-current assets     0.8 0.8    
Total identifiable assets acquired     808.0 807.6   (0.4)
Current liabilities     (22.8) (24.1)   (1.3)
Mine closure obligations     (2.8) (2.8)    
Below- market sales contracts     (32.6) (32.6)    
Total identifiable liabilities assumed     (58.2) (59.5)   (1.3)
Total identifiable net assets acquired     749.8 748.1   (1.7)
Preliminary goodwill     24.7 27.8   3.1
Total net assets acquired   $ 1.7 $ 774.5 $ 775.9 $ 775.9 $ 1.4