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Debt
3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Debt
7. Debt

Debt consists of (in millions):

 

     March 31,
2017
     December 31,
2016
 

$500 million in Senior Notes, interest at 1.35% payable semiannually, principal due on December 1, 2017

   $ 499      $ 499  

$1.4 billion in Senior Notes, interest at 2.60% payable semiannually, principal due on December 1, 2022

     1,391        1,391  

$1.1 billion in Senior Notes, interest at 3.95% payable semiannually, principal due on December 1, 2042

     1,087        1,087  

Other

     236        237  
  

 

 

    

 

 

 

Total debt

     3,213        3,214  

Less current portion

     506        506  
  

 

 

    

 

 

 

Long-term debt

   $ 2,707      $ 2,708  
  

 

 

    

 

 

 

The Company has a $4.5 billion, five-year credit facility which expires September 28, 2018. The Company also has a commercial paper program under which borrowings are classified as long-term since the program is supported by the $4.5 billion, five-year credit facility. At March 31, 2017, there were no commercial paper borrowings, and there were no outstanding letters of credit issued under the credit facility, resulting in $4,500 million of funds available under this credit facility. Interest under this multicurrency facility is based upon LIBOR, NIBOR or EURIBOR plus 1.125% subject to a ratings-based grid, or the U.S. prime rate. The credit facility contains a financial covenant regarding maximum debt-to-capitalization ratio of 60%. As of March 31, 2017, the Company was in compliance with a debt-to-capitalization ratio of 18.7%.

The Company had $1,002 million of outstanding letters of credit at March 31, 2017 that are under various bilateral letter of credit facilities. Letters of credit are issued as bid bonds, advanced payment bonds and performance bonds.

The fair value of the Company’s debt is estimated using Level 2 inputs in the fair value hierarchy and is based on quoted prices for those or similar instruments. At March 31, 2017 and December 31, 2016, the fair value of the Company’s unsecured Senior Notes approximated $2,740 million and $2,669 million, respectively. At both March 31, 2017 and December 31, 2016, the carrying value of the Company’s unsecured Senior Notes approximated $2,977 million.