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Schedule II - Valuation and Qualifying Accounts and Allowances
 12 Months Ended
Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts and Allowances
SCHEDULE II

WEATHERFORD INTERNATIONAL PLC AND SUBSIDIARIES
VALUATION AND QUALIFYING ACCOUNTS AND ALLOWANCES
FOR THE THREE YEARS ENDED DECEMBER 31, 2016
 
 
Balance at
 
 
 
(Recovery)
 
 
 
Balance at
 
 
Beginning
 
 
 
and
 
Other
 
End of
(Dollars in millions)
 
of Period
 
Expense
 
Additions
 
Reductions (a) (b)
 
Period
Year Ended December 31, 2016:
 
 
 
 
 
 
 
 
 
 
Allowance for uncollectible accounts receivable
 
113

 
69

 
—

 
(53
)
 
129

Valuation allowance on deferred tax assets
 
868

 
872

 
—

 
(2
)
 
1,738

 
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2015:
 
 
 
 
 
 
 
 
 
 
Allowance for uncollectible accounts receivable
 
108

 
48

 
(1
)
 
(42
)
 
113

Valuation allowance on deferred tax assets
 
732

 
159

 
—

 
(23
)
 
868

 
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2014:
 
 
 
 
 
 
 
 
 
 
Allowance for uncollectible accounts receivable
 
106

 
32

 
(4
)
 
(26
)
 
108

Valuation allowance on deferred tax assets
 
554

 
222

 
—

 
(44
)
 
732


(a)
Includes write-offs and amounts reclassified to assets held for sale.
(b)
Other reductions for valuation allowance on deferred taxes primarily due to currency translation.

All other schedules are omitted because they are not required or because the information is included in the financial statements or the related notes.