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Valuation And Qualifying Accounts And Reserves
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Valuation And Qualifying Accounts And Reserves
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
 
 
 
 
 
 
 
 
 
 
 
Balance at
 
 
 
 
 
 
 
Balance at
 
Beginning
 
 
 
 
 
 
 
End
 
of Year
 
Additions
 
Deductions (1)
 
Other (2)
 
of Year
 
(In millions)
Allowance for doubtful accounts
 
 
 
 
 
 
 
 
 
December 31, 2013
$
87

 
35

 
(39
)
 
(2
)
 
$
81

December 31, 2014
$
81

 
37

 
(32
)
 
(5
)
 
$
81

December 31, 2015
$
81

 
24

 
(32
)
 
(3
)
 
$
70

 
 
 
 
 
 
 
 
 
 
(1) Uncollectible accounts written off and recoveries
(2) Impact of reclassifications and foreign currency exchange adjustments