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Long-term Debt
 9 Months Ended
Sep. 30, 2013
Long-term Debt

10. Long-term Debt

A summary of Long-term Debt follows:

 

 

(Stated in millions)

 

 

Sept. 30,
2013

 

  

Dec. 31
2012

 

3.30% Senior Notes due 2021             

$

  1,596

  

  

$

  1,595

  

4.50% Guaranteed Notes due 2014             

 

—

  

  

 

  1,324

  

2.75% Guaranteed Notes due 2015             

 

  1,347

  

  

 

  1,318

  

1.95% Senior Notes due 2016             

 

  1,099

  

  

 

  1,099

  

4.20% Senior Notes due 2021             

 

  1,099

  

  

 

  1,099

  

1.25% Senior Notes due 2017             

 

  999

  

  

 

  999

  

2.40% Senior Notes due 2022             

 

  998

  

  

 

  998

  

2.65% Senior Notes due 2016             

 

  500

  

  

 

  500

  

Floating Rate Senior Notes due 2014             

 

—

  

  

 

  300

  

Commercial paper borrowings             

 

  1,700

  

  

 

—

  

Other             

 

  578

  

  

 

  277

  

 

$

  9,916

  

  

$

  9,509

  

The estimated fair value of Schlumberger’s Long-term Debt at September 30, 2013 and December 31, 2012, based on quoted market prices, was $10.0 billion and $9.9 billion, respectively.