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STOCKHOLDERS'EQUITY: (Details 2) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended | 8 Months Ended | 9 Months Ended | 12 Months Ended | 47 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2012 | May 31, 2012 | Apr. 30, 2012 | Jul. 31, 2011 | Jun. 30, 2012 | Dec. 31, 2008 | Oct. 14, 2010 | Dec. 31, 2011 | Sep. 30, 2009 | Dec. 31, 2008 | Jun. 30, 2012
SCC share repurchase program: |  |  |  |  |  |  |  |  |  |  |
Amount authorized for share repurchase program |  |  |  | $ 1,000 |  |  |  |  |  | $ 500 |
Total Number of Shares Purchased | 370,000 | 500,000 | 278,486 |  | 1,148,486 | 28,510,150 | 15,600 | 9,034,400 | 4,912,000 |  | 43,620,636
Average Price Paid per Share | $ 28.33 | $ 28.57 | $ 30.23 |  | $ 28.89 | $ 13.49 | $ 29.69 | $ 30.29 | $ 14.64 |  | $ 17.51
Total Number of Shares Purchased as Part of Publicly Announced Plan | 43,620,636 | 43,250,636 | 42,750,636 |  | 43,620,636 | 28,510,150 | 33,437,750 | 42,472,150 | 33,422,150 | 28,510,150 | 43,620,636
Maximum Number of Shares that may yet be Purchased Under the Plan @ $31.51 | 7,493,007 |  |  |  | 7,493,007 |  |  |  |  |  | 7,493,007
Share purchase price under the plan (in dollars per share) | $ 31.51 |  |  |  | $ 31.51 |  |  |  |  |  | $ 31.51
Total Cost | $ 10.5 | $ 14.3 | $ 8.4 |  | $ 33.2 | $ 384.7 | $ 0.5 | $ 273.7 | $ 71.9 |  | $ 764.0
Percentage of ownership interest held by the parent company | 81.00% |  |  |  | 81.00% |  |  |  |  |  | 81.00%

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