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Cash And Cash Equivalents (Tables)
 6 Months Ended
Jun. 30, 2016
Cash And Cash Equivalents [Abstract]  
Summary Of Cash And Cash Equivalents



 

 

 

 

 



June 30,

 

December 31,



2016

 

2015



(in millions)



 

 

 

 

 

Cash

$

 12 

 

$

 15 

Marketable securities (1)

 

 986 

 

 

– 

Total cash and cash equivalents

$

 998 

 

$

 15 

(1)

Consists of money market funds.