XML 78 R51.htm IDEA: XBRL DOCUMENT v3.5.0.2
External Debt and Financing Arrangements - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Debt Instrument [Line Items]            
Revolving credit facility, extended expiration date       2021-06    
Current portion of long-term debt   $ 0   $ 0   $ 0
Prepaid debt issuance cost, write off   1,300,000        
Uncommitted bank lines of credit, which provide for unsecured borrowings for working capital   25,700,000   25,700,000    
Uncommitted bank lines of credit, which provide for unsecured borrowings for working capital amount outstanding   $ 3,200,000   $ 3,200,000   800,000
Weighted-average interest rates on borrowings   1.10% 0.00% 1.20% 0.00%  
Issuance of long-term debt       $ 665,000,000 $ 1,748,900,000  
Repayment of long-term debt       235,000,000 1,031,300,000  
Restatement Adjustment            
Debt Instrument [Line Items]            
Issuance of long-term debt       60,000,000    
Repayment of long-term debt       60,000,000    
Restatement Adjustment | Accounting Standards Update 2015-03 | Other Current Assets and Other Assets            
Debt Instrument [Line Items]            
Debt Issuance Costs, Line of Credit Arrangements   $ (3,000,000)   (3,000,000)    
Restatement Adjustment | Accounting Standards Update 2015-03 | Long-term Debt            
Debt Instrument [Line Items]            
Debt Issuance Costs, Line of Credit Arrangements   3,000,000   $ 3,000,000    
LIBOR [Member] | Minimum [Member]            
Debt Instrument [Line Items]            
Interest rate over LIBOR       0.90%    
LIBOR [Member] | Maximum [Member]            
Debt Instrument [Line Items]            
Interest rate over LIBOR       1.50%    
Term Loan Facilities [Member]            
Debt Instrument [Line Items]            
Term loan, outstanding borrowings   710,000,000   $ 710,000,000   279,000,000
Senior Unsecured Notes [Member]            
Debt Instrument [Line Items]            
Senior unsecured notes, price $ 900,000,000   $ 900,000,000   900,000,000  
Senior notes, outstanding amount   890,400,000   890,400,000   $ 889,700,000
Senior Unsecured Notes [Member] | Notes Due 2020 [Member]            
Debt Instrument [Line Items]            
Senior unsecured notes, price $ 400,000,000   $ 400,000,000   $ 400,000,000  
Senior unsecured notes, maturity period 5 years          
Senior unsecured notes, maturity year 2020          
Senior unsecured notes, coupon rate 3.00%   3.00%   3.00%  
Senior Unsecured Notes [Member] | Notes Due 2025 [Member]            
Debt Instrument [Line Items]            
Senior unsecured notes, price $ 500,000,000   $ 500,000,000   $ 500,000,000  
Senior unsecured notes, maturity period 10 years          
Senior unsecured notes, maturity year 2025          
Senior unsecured notes, coupon rate 4.00%   4.00%   4.00%  
Amended and Restated Credit Agreement [Member] | Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Line of Credit Facility, Maximum Borrowing Capacity   $ 1,250,000,000   $ 1,250,000,000