DEBT AND CREDIT FACILITIES (Narrative) (Details)
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3 Months Ended | 12 Months Ended | 3 Months Ended | 3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2013
USD ($)
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Dec. 31, 2012
USD ($)
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Mar. 31, 2013
Term Loan [Member]
USD ($)
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Dec. 31, 2012
Unsecured Credit Facility [Member]
Quarter
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Mar. 31, 2013
Revolving Loan [Member]
USD ($)
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Dec. 31, 2012
Revolving Loan [Member]
USD ($)
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Mar. 31, 2013
Revolving Loan [Member]
Maximum [Member]
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Mar. 31, 2013
Letter of Credit [Member]
USD ($)
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Mar. 31, 2013
Senior Notes - $500 Million [Member]
USD ($)
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Dec. 31, 2012
Senior Notes - $500 Million [Member]
USD ($)
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Dec. 31, 2012
$270 Million Senior Notes [Member]
USD ($)
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Mar. 31, 2013
10-year Tranche - $700 million 4.88% Senior Notes due 2021 [Member]
USD ($)
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Dec. 31, 2012
10-year Tranche - $700 million 4.88% Senior Notes due 2021 [Member]
USD ($)
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Mar. 31, 2013
10-year Tranche - $500 million 4.80% Senior Notes due 2020 [Member]
USD ($)
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Dec. 31, 2012
10-year Tranche - $500 million 4.80% Senior Notes due 2020 [Member]
USD ($)
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Mar. 31, 2013
$800 Million 6.25% 2040 Senior Notes [Member]
USD ($)
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Dec. 31, 2012
$800 Million 6.25% 2040 Senior Notes [Member]
USD ($)
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Mar. 31, 2013
$400 Million 5.90% 2020 Senior Notes [Member]
USD ($)
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Dec. 31, 2012
$400 Million 5.90% 2020 Senior Notes [Member]
USD ($)
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Mar. 31, 2013
Term Loan - $1.25 Billion [Member]
USD ($)
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Dec. 31, 2012
Term Loan - $1.25 Billion [Member]
USD ($)
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Mar. 31, 2013
Bank Contingent Instrument Facility and Cash Advance Facility [Member]
USD ($)
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Mar. 31, 2013
Bank Contingent Instrument Facility and Cash Advance Facility [Member]
AUD
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Dec. 31, 2012
Bank Contingent Instrument Facility and Cash Advance Facility [Member]
USD ($)
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Dec. 31, 2012
Bank Contingent Instrument Facility and Cash Advance Facility [Member]
AUD
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Line of Credit Facility [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Term Loan Original Amount | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 0 | $ 1,250,000,000 | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Long-term Debt, Gross | 3,433,000,000 | 4,054,800,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 495,900,000 | [1] | 495,700,000 | [1] | Ìý | 699,400,000 | 699,400,000 | [2] | 499,200,000 | [3] | 499,200,000 | [3] | 790,200,000 | [4] | 790,200,000 | [4] | 398,300,000 | [5] | 398,200,000 | [5] | Ìý | 847,100,000 | [6] | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||
Revolving credit facility, borrowing capacity | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 41,700,000 | 40,000,000 | 41,600,000 | Ìý | ||||||||||||||||||||||||||
Financial covenant, debt to earnings ratio | Ìý | Ìý | Ìý | 3.5 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Debt instrument, face amount | 4,650,000,000 | 5,497,100,000 | Ìý | Ìý | 1,750,000,000.00 | 1,750,000,000.00 | Ìý | Ìý | 500,000,000.0 | 500,000,000.0 | 270,000,000 | 700,000,000 | 700,000,000 | 500,000,000 | 500,000,000 | 800,000,000 | 800,000,000 | 400,000,000 | 400,000,000 | Ìý | 847,100,000 | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Number of preceding quarters to calculate financial covenant | Ìý | Ìý | Ìý | 4 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Financial covenant, interest coverage ratio | Ìý | Ìý | Ìý | 2.50 | 2.5 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Extinguishment of Debt, Amount | Ìý | Ìý | 847,100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Deferred Finance Costs, Net | Ìý | Ìý | 7,100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Stated interest rate | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 3.95% | Ìý | Ìý | 4.875% | Ìý | 4.80% | Ìý | 6.25% | Ìý | 5.90% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Credit facility, amount outstanding | Ìý | Ìý | Ìý | Ìý | 550,000,000 | [7] | 325,000,000 | [7] | Ìý | 27,700,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 35,400,000 | 34,000,000 | 26,000,000 | 25,000,000 | ||||||||||||||||||||||||
Credit facility remaining capacity | Ìý | Ìý | Ìý | Ìý | 1,200,000,000 | 1,400,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 6,300,000 | 6,000,000 | 15,600,000 | 15,000,000 | ||||||||||||||||||||||||||
Letters of credit outstanding | 95,000,000 | 96,900,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Debt Instrument, Unamortized Discount | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 4,100,000 | 4,300,000 | Ìý | 600,000 | Ìý | 800,000 | Ìý | 9,800,000 | Ìý | 1,700,000 | 1,800,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Debt Instrument, Minimum Tangible Net Worth Required Under Agreement, as of the End of Each Fiscal Quarter in the Next Fiscal Year | Ìý | Ìý | Ìý | Ìý | Ìý | $ 4,600,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Debt Instrument, Maximum Total Funded Debt to Capitalization Required Until the End of the Next Fiscal Year End | Ìý | Ìý | Ìý | Ìý | 52.50% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Potential Increase in Borrowing Costs on Outstanding Borrowings | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 0.50% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
Potential Increase in Borrowing Costs on Unused Borrowing Capacity | Ìý | Ìý | Ìý | Ìý | 0.10% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | ||||||||||||||||||||||||||
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