XML 79 R60.htm IDEA: XBRL DOCUMENT v3.10.0.1
Long-Term Debt - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
[1]
Mar. 31, 2018
[1]
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Aug. 16, 2018
Debt Instrument [Line Items]                  
Proceeds from sale of assets         $ 214,800 $ 54,458 $ 144,353 $ 631,549  
Loss on extinguishment of debt $ 0 [1] $ 7,133 [1] $ 0 $ 0   7,133 554 26,055  
TotalRedemptionAmount                 $ 415,100
Aggregate amount of lender commitments on credit facility 1,500,000         1,500,000      
Line of Credit Facility, Maximum Borrowing Capacity 4,000,000         $ 4,000,000      
Line of credit facility, commitment fee percentage, per annum           0.20%      
Line of Credit Facility, Covenant Terms           0.65      
Proceeds from issuance of Senior Notes           $ 0 990,000 0  
Repayments of Lines of Credit           2,212,000 2,019,000 $ 1,639,000  
Current portion of long-term debt 2,360         2,360 2,286    
Senior Notes due 2022 [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Repurchased Face Amount                 $ 400,000
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed   20.00%              
Debt Instrument, Redemption Price, Percentage   101.667%              
Debt Instrument, Face Amount 1,600,000         $ 1,600,000      
Debt instrument, maturity date           Sep. 15, 2022      
Senior Notes due 2028 [Domain]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount 1,000,000         $ 1,000,000      
Debt instrument, maturity date           Jan. 15, 2028      
Note Payable [Member]                  
Debt Instrument [Line Items]                  
Notes Payable $ 22,000         $ 22,000      
Loan period, in years           10 years      
Debt instrument, stated interest rate 3.14%         3.14%      
Debt instrument, maturity date           Feb. 26, 2022      
5% Senior Notes due 2022 [Member]                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate 5.00%         5.00%      
Senior Notes Due 2023 [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount $ 1,500,000         $ 1,500,000      
Debt instrument, maturity date           Apr. 15, 2023      
4.5% Senior Notes due 2023 [Member]                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate 4.50%         4.50%      
3.8% Senior Notes due 2024 [Member]                  
Debt Instrument [Line Items]                  
Senior notes             992,036    
Debt instrument, stated interest rate 3.80%         3.80%      
4.375% Senior Notes Due 2028                  
Debt Instrument [Line Items]                  
Senior notes             988,061    
Debt instrument, stated interest rate 4.375%         4.375%      
4.9% Senior Notes due 2044 [Member]                  
Debt Instrument [Line Items]                  
Senior notes             691,354    
Debt instrument, stated interest rate 4.90%         4.90%      
Carrying Amount [Member]                  
Debt Instrument [Line Items]                  
Line of credit facility, amount outstanding $ 0         $ 0 188,000    
Notes Payable 7,700         7,700 9,974    
Carrying Amount [Member] | 5% Senior Notes due 2022 [Member]                  
Debt Instrument [Line Items]                  
Senior notes 1,598,404         1,598,404 1,997,576    
Carrying Amount [Member] | 4.5% Senior Notes due 2023 [Member]                  
Debt Instrument [Line Items]                  
Senior notes 1,488,960         1,488,960 1,486,690    
Carrying Amount [Member] | 3.8% Senior Notes due 2024 [Member]                  
Debt Instrument [Line Items]                  
Senior notes 993,151         993,151 992,036    
Carrying Amount [Member] | 4.375% Senior Notes Due 2028                  
Debt Instrument [Line Items]                  
Senior notes 988,617         988,617 988,061    
Carrying Amount [Member] | 4.9% Senior Notes due 2044 [Member]                  
Debt Instrument [Line Items]                  
Senior notes $ 691,517         $ 691,517 $ 691,354    
[1] See Note 7. Long-Term Debt for discussion of the loss recognized by the Company upon the partial redemption of its 2022 Notes in the 2018 third quarter.