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Debt (Tables)
3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Debt
Our debt consisted of the following:
 
 
March 31, 
 2017
 
December 31, 
 2016
 
 
(In millions)
Senior unsecured debt:
 
 
 
 
5¾% Senior Notes due 2022
 
$
750

 
$
750

5⅝% Senior Notes due 2024
 
1,000

 
1,000

5⅜% Senior Notes due 2026
 
700

 
700

Total senior unsecured debt
 
2,450

 
2,450

Debt issuance costs
 
(18
)
 
(19
)
Total long-term debt
 
$
2,432

 
$
2,431