Annual report pursuant to Section 13 and 15(d)

DEBT AND CREDIT FACILITIES (Schedule Of Long-Term Debt) (Details)

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DEBT AND CREDIT FACILITIES (Schedule Of Long-Term Debt) (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
$1.25 Billion Term Loan [Member]
Dec. 31, 2011
$1.25 Billion Term Loan [Member]
Dec. 31, 2012
$700 million 4.875% 2021 Senior Notes [Member]
Dec. 31, 2011
$700 million 4.875% 2021 Senior Notes [Member]
Mar. 31, 2011
$700 million 4.875% 2021 Senior Notes [Member]
Dec. 31, 2012
$500 million 4.80% 2020 Senior Notes [Member]
Dec. 31, 2011
$500 million 4.80% 2020 Senior Notes [Member]
Sep. 20, 2010
$500 million 4.80% 2020 Senior Notes [Member]
Dec. 31, 2012
$800 Million 6.25% 2040 Senior Notes [Member]
Dec. 31, 2011
$800 Million 6.25% 2040 Senior Notes [Member]
Dec. 31, 2012
$400 Million 5.90% 2020 Senior Notes [Member]
Dec. 31, 2011
$400 Million 5.90% 2020 Senior Notes [Member]
Mar. 17, 2010
$400 Million 5.90% 2020 Senior Notes [Member]
Dec. 31, 2011
Series 2008A - Tranche A [Member]
Dec. 31, 2012
Series 2008A - Tranche A [Member]
Dec. 31, 2011
Series 2008A - Tranche B [Member]
Dec. 31, 2012
$500 Million 3.95% 2018 Senior Notes [Member]
Dec. 31, 2011
$500 Million 3.95% 2018 Senior Notes [Member]
Dec. 12, 2011
Revolving Loan [Member]
Dec. 31, 2012
Revolving Loan [Member]
Dec. 31, 2011
Revolving Loan [Member]
Dec. 31, 2012
Letter of Credit [Member]
Dec. 31, 2011
Letter of Credit [Member]
Debt Instrument [Line Items]                                                  
Stated interest rate         4.875%     4.80%     6.25%       5.90%       3.95%            
Type     Variable Variable Fixed Fixed   Fixed Fixed   Fixed Fixed Fixed Fixed   Fixed   Fixed Fixed     Variable Variable    
Annual Effective Interest Rate     1.83% 1.40% 4.88% 4.88%   4.80% 4.80%   6.25% 6.25% 5.90% 5.90%   6.31%   6.59% 4.14%   1.84% 2.02% 0.00%    
Final Maturity     2016 2016 2021 2021   2020 2020   2040 2040 2020 2020   2013   2015 2018     2017 2016    
Total Face Amount $ 5,497,100,000 $ 5,447,000,000 $ 847,100,000 [1] $ 972,000,000 $ 700,000,000 $ 700,000,000   $ 500,000,000 $ 500,000,000   $ 800,000,000 $ 800,000,000 $ 400,000,000 $ 400,000,000   $ 270,000,000 $ 270,000,000 $ 55,000,000 $ 500,000,000 $ 500,000,000   $ 1,750,000,000 $ 1,750,000,000    
Long-term Debt, Gross 4,054,800,000 3,683,500,000 847,100,000 [1] 972,000,000 [1] 699,400,000 699,300,000 [2]   499,200,000 [3] 499,100,000 [3]   790,200,000 [4] 790,100,000 [4] 398,200,000 [5] 398,000,000 [5]   270,000,000   55,000,000 495,700,000 [6]            
Senior Notes             700,000,000     500,000,000                              
Current portion of long-term debt 94,100,000 74,800,000                                              
Long-term debt noncurrent portion 3,960,700,000 3,608,700,000                                              
Total amounts paid down on original loan     402,800,000 278,000,000                                          
Original loan amount     1,250,000,000 1,250,000,000                                          
Current portion of long-term debt     94,100,000 74,800,000                                          
Unamortized discount         600,000 700,000   800,000 900,000   9,800,000 9,900,000 1,800,000 2,000,000         4,300,000            
Imputed interest rate         4.89%     4.83%     6.38%   5.98%           4.14%            
Credit facility, amount outstanding                                           325,000,000 [7] 0 [7] 27,700,000 23,500,000
Credit facility remaining capacity                                           $ 1,400,000,000 $ 1,700,000,000    
[1] As of December 31, 2012 and December 31, 2011, $402.8 million and $278.0 million, respectively, had been paid down on the original $1.25 billion term loan and, of the remaining term loan, $94.1 million and $74.8 million, respectively, was classified as Current portion of debt. The current classification is based upon the principal payment terms of the arrangement requiring principal payments on each three-month anniversary following the funding of the term loan.
[2] As of December 31, 2012 and December 31, 2011, the $700 million 4.88 percent senior notes were recorded at a par value of $700 million less unamortized discounts of $0.6 million and $0.7 million, respectively, based on an imputed interest rate of 4.89 percent.
[3] As of December 31, 2012 and December 31, 2011, the $500 million 4.80 percent senior notes were recorded at a par value of $500 million less unamortized discounts of $0.8 million and $0.9 million, respectively, based on an imputed interest rate of 4.83 percent.
[4] As of December 31, 2012 and December 31, 2011, the $800 million 6.25 percent senior notes were recorded at par value of $800 million less unamortized discounts of $9.8 million and $9.9 million, respectively, based on an imputed interest rate of 6.38 percent.
[5] As of December 31, 2012 and December 31, 2011, the $400 million 5.90 percent senior notes were recorded at a par value of $400 million less unamortized discounts of $1.8 million and $2.0 million, respectively, based on an imputed interest rate of 5.98 percent.
[6] As of December 31, 2012, the $500 million 3.95 percent senior notes were recorded at a par value of $500 million less unamortized discounts of $4.3 million, based on an imputed interest rate of 4.14 percent.
[7] As of December 31, 2012 and December 31, 2011, $325.0 million and no revolving loans were drawn under the credit facility, respectively, and the principal amount of letter of credit obligations totaled $27.7 million and $23.5 million for each period, respectively, thereby reducing available borrowing capacity to $1.4 billion and $1.7 billion for each period, respectively.