Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)

v3.5.0.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)
AUD in Billions
 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 04, 2015
shares
Oct. 24, 2014
USD ($)
shares
Jun. 30, 2016
USD ($)
shares
Jun. 30, 2015
shares
Feb. 04, 2015
shares
Jun. 30, 2016
USD ($)
shares
Jun. 30, 2015
shares
Dec. 31, 2015
USD ($)
Jan. 31, 2016
USD ($)
Jan. 31, 2016
AUD
Dec. 31, 2015
AUD
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Fair value of long term debt     $ 2,700,000,000     $ 2,700,000,000   $ 1,200,000,000      
Carrying value of long term debt     2,500,000,000     2,500,000,000   1,100,000,000      
Variable interest maximum exposure to loss     $ 13,400,000.0     $ 13,400,000.0          
Variable interest entity, ownership interest     75.00%     75.00%          
Redemption premium           $ 0          
Accelerated Share Repurchase Program                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Accelerated share repurchases, settlement (payment) or receipt   $ 115,000,000                  
Number of treasury shares repurchased | shares 20,000 1,400,000     1,420,000            
Accelerated share repurchase program, adjustment percent   10.00%                  
Accelerated share repurchase program, adjustment   $ 11,500,000                  
Other Current Assets                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Restricted cash and cash equivalents     $ 20,500,000     20,500,000          
Other Current Liabilities                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Restricted cash and cash equivalents     $ 20,500,000     20,500,000          
Foreign Exchange Option                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Foreign currency option, weighted average strike price               0.7225 $ 0.7091    
Derivative, notional amount | AUD                   AUD 1.0 AUD 1.0
Derivative, gain on derivative               4,700,000      
Derivative asset               $ 14,400,000      
Derivative, loss on derivative           $ 15,400,000          
Employee Stock Option                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Share-based compensation arrangement by share-based payment award, options, antidilutive | shares     0 0   0 0