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ACQUISITIONS AND INVESTMENTS - Additional Information (Details) AUD / shares in Units, AUD in Millions |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 24, 2016 USD ($) | Feb. 24, 2016 AUD | Jun. 30, 2016 USD ($) | Feb. 24, 2016 AUD AUD / shares | Dec. 31, 2015 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Debt, long term |  |  | $ 2,960,000,000 |  | $ 1,196,800,000
364-Day Revolver |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Debt, long term |  |  | 0 |  | 0
Business combination, debt instrument, face amount | $ 800,000,000 |  |  |  |
Term Loan, due Nov 2018 |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Debt, long term |  |  | 590,000,000 |  | $ 0
Business combination, debt instrument, face amount |  |  | $ 800,000,000 |  |
Debt instrument, term |  |  | 3 years |  |
Veda |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting interests acquired | 100.00% |  |  | 100.00% |
Business combination, consideration transferred | $ 1,700,000,000 | AUD 2,400.0 |  |  |
Business combination, separately recognized transactions, liabilities recognized | 189,500,000 |  |  | AUD 261.9 |
Business acquisition, share price | AUD / shares |  |  |  | AUD 2.825 |
Debt, long term | $ 1,700,000,000 |  |  |  |

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