text: The March 6, 2013 termination is related to Debt Derivatives hedging 
  the US $350 million senior notes due 2038 (2038 Notes). The Debt 
  Derivatives 
  that were terminated on March 6, 2013 were not 
  designated as effective hedges for accounting purposes and had an 
  original term of 10 years to August 15, 2018. The new Debt Derivatives 
  hedge the foreign exchange risk associated with the principal and 
  interest obligations on the 2038 Notes to their maturity at market rates 
  on the respective dates of the transactions and are designated as 
  effective hedges for accounting purposes. 
  
  **Expenditure Derivatives**
  We use foreign currency forward contracts (Expenditure Derivatives), to 
  hedge the foreign exchange risk on the notional amount of certain 
  forecasted expenditures. We use Expenditure Derivatives for 
  risk- 
  management purposes only. 
  
  In 2013, we: 
  (cid:129) entered into US$955 million of Expenditure Derivatives maturing 
  from April 2013 through December 2014 at an average rate of 
  $1.0341/US$1 
  (cid:129) settled US$435 million of Expenditure Derivatives for $430 million 