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ACQUISITIONS (Schedule Of Allocation Of Purchase Price) (Details) (USD $)
In Millions, unless otherwise specified |
0 Months Ended | 12 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jul. 30, 2010
CLCC [Member]
|
Jul. 30, 2010
CLCC [Member]
Initial Allocation [Member]
|
Jun. 30, 2011
CLCC [Member]
Final Allocation [Member]
|
Jun. 30, 2011
CLCC [Member]
Change [Member]
|
Jul. 06, 2010
Spider [Member]
|
Jun. 30, 2010
Spider [Member]
|
Jul. 06, 2010
Spider [Member]
Initial Allocation [Member]
|
Dec. 31, 2010
Spider [Member]
Final Allocation [Member]
|
Dec. 31, 2010
Spider [Member]
Change [Member]
|
Jan. 27, 2010
Freewest [Member]
|
Dec. 31, 2012
Freewest [Member]
Initial Allocation [Member]
|
Jan. 27, 2010
Freewest [Member]
Initial Allocation [Member]
|
Dec. 31, 2010
Freewest [Member]
Final Allocation [Member]
|
Dec. 31, 2010
Freewest [Member]
Change [Member]
|
Dec. 31, 2012
Consolidated Thompson [Member]
|
May 12, 2011
Consolidated Thompson [Member]
Initial Allocation [Member]
|
Jun. 30, 2012
Consolidated Thompson [Member]
Final Allocation [Member]
|
Jun. 30, 2012
Consolidated Thompson [Member]
Change [Member]
|
Feb. 02, 2010
Wabush [Member]
|
Feb. 01, 2010
Wabush [Member]
Initial Allocation [Member]
|
Dec. 31, 2010
Wabush [Member]
Final Allocation [Member]
|
Dec. 31, 2010
Wabush [Member]
Change [Member]
|
|
| Business Acquisition [Line Items] | ||||||||||||||||||||||
| Equity instruments | $ 173.1 | $ 173.1 | $ 173.1 | $ 0 | ||||||||||||||||||
| Number of shares issued as acquisition consideration | 4.2 | 4.2 | ||||||||||||||||||||
| Cash | 757.0 | 757.0 | 757.0 | 0 | 56.9 | 56.9 | 56.9 | 0 | 12.8 | 12.8 | 12.8 | 0 | 4,554.0 | 4,554.0 | 0 | 88.0 | 88.0 | 88.0 | 0 | |||
| Working capital adjustments | 18.9 | 17.5 | 18.9 | 1.4 | 15.0 | 15.0 | 15.0 | 0 | ||||||||||||||
| Fair value of total consideration transferred | 775.9 | 774.5 | 775.9 | 1.4 | 56.9 | 56.9 | 0 | 185.9 | 185.9 | 185.9 | 0 | 4,554.0 | 4,554.0 | 0 | 103.0 | 103.0 | 103.0 | 0 | ||||
| Fair value of equity interest before acquisition | 4.9 | 4.9 | 4.9 | 0 | 27.4 | 27.4 | 27.4 | 0 | 39.7 | 38.0 | (1.7) | |||||||||||
| ASSETS: | ||||||||||||||||||||||
| Cash | 9.0 | 9.0 | 0 | 7.7 | 7.7 | 0 | 130.6 | 130.6 | 0 | |||||||||||||
| Accounts receivable | 102.8 | 102.4 | (0.4) | |||||||||||||||||||
| Product and in-process inventories | 20.0 | 20.0 | 0 | 134.2 | 134.2 | 0 | 21.8 | 21.8 | 0 | |||||||||||||
| Supplies and other inventories | 43.6 | 43.6 | 0 | |||||||||||||||||||
| Other current assets | 11.8 | 11.8 | 0 | 4.5 | 4.5 | 0 | 1.4 | 1.4 | 0 | 35.1 | 35.1 | 0 | 13.2 | 13.2 | 0 | |||||||
| Land and mineral rights | 640.3 | 639.3 | (1.0) | |||||||||||||||||||
| Mineral rights | 31.0 | 35.3 | 4.3 | 252.8 | 244.0 | (8.8) | 4,825.6 | 4,450.0 | 4,825.6 | 375.6 | 85.1 | 84.4 | (0.7) | |||||||||
| Property, plant and equipment | 111.1 | 112.3 | 1.2 | 1,193.4 | 1,193.4 | 0 | 146.3 | 147.8 | 1.5 | |||||||||||||
| Deferred taxes | 16.5 | 15.9 | (0.6) | |||||||||||||||||||
| Marketable securities | 12.1 | 12.1 | 0 | |||||||||||||||||||
| Intangible assets | 7.5 | 7.5 | 7.5 | 0 | 2.1 | 2.1 | 0 | 66.4 | 66.4 | 66.4 | 0 | |||||||||||
| Other assets | 0.8 | 0.8 | 0 | 16.3 | 19.3 | 3.0 | ||||||||||||||||
| Total identifiable assets acquired | 808.0 | 807.6 | (0.4) | 44.5 | 48.8 | 4.3 | 274.0 | 265.2 | (8.8) | 6,048.2 | 6,423.4 | 375.2 | 392.7 | 396.5 | 3.8 | |||||||
| LIABILITIES | ||||||||||||||||||||||
| Current liabilities | (22.8) | (24.1) | (1.3) | (48.1) | (48.1) | 0 | ||||||||||||||||
| Accounts payable | (3.3) | (3.3) | 0 | (13.6) | (13.6) | 0 | ||||||||||||||||
| Accrued liabilities | (130.0) | (123.8) | 6.2 | |||||||||||||||||||
| Convertible debentures | (335.7) | (335.7) | 0 | |||||||||||||||||||
| Other current liabilities | (5.2) | (5.2) | 0 | (41.8) | (47.9) | (6.1) | ||||||||||||||||
| Pension and OPEB obligations | (80.6) | (80.6) | 0 | |||||||||||||||||||
| Mine closure obligations | (2.8) | (2.8) | 0 | (39.6) | (53.4) | (13.8) | ||||||||||||||||
| Below-market sales contracts | (32.6) | (32.6) | 0 | (67.7) | (67.7) | 0 | ||||||||||||||||
| Long-term deferred tax liabilities | (2.7) | (5.1) | (2.4) | (57.4) | (54.3) | 3.1 | 1,041.8 | (831.5) | (1,041.8) | (210.3) | (20.5) | 0 | 20.5 | |||||||||
| Senior secured notes | (125.0) | (125.0) | 0 | |||||||||||||||||||
| Capital lease obligations | (70.7) | (70.7) | 0 | |||||||||||||||||||
| Other long-term liabilities | (25.1) | (32.8) | (7.7) | (8.9) | (8.8) | 0.1 | ||||||||||||||||
| Total identifiable liabilities assumed | (58.2) | (59.5) | (1.3) | (7.9) | (10.3) | (2.4) | (60.7) | (57.6) | 3.1 | (1,573.4) | (1,791.3) | (217.9) | (265.4) | (258.6) | 6.8 | |||||||
| Total identifiable net assets acquired | 749.8 | 748.1 | (1.7) | 36.6 | 38.5 | 1.9 | 213.3 | 207.6 | (5.7) | 4,474.8 | 4,632.1 | 157.3 | 127.3 | 137.9 | 10.6 | |||||||
| Noncontrolling interest | (51.9) | (51.9) | (51.9) | 0 | (1,075.4) | (947.6) | (1,075.4) | (127.8) | ||||||||||||||
| Goodwill | 24.7 | 27.8 | 3.1 | 77.1 | 75.2 | (1.9) | 0 | 5.7 | 5.7 | 1,026.8 | 997.3 | (29.5) | 15.4 | 3.1 | (12.3) | |||||||
| Total net assets acquired | $ 774.5 | $ 775.9 | $ 1.4 | $ 61.8 | $ 61.8 | $ 0 | $ 213.3 | $ 213.3 | $ 0 | $ 4,554.0 | $ 4,554.0 | $ 0 | $ 142.7 | $ 141.0 | $ (1.7) | |||||||