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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
Schedule II – Valuation and Qualifying Accounts
Occidental Petroleum Corporation
and Subsidiaries
in millions


 
 
 
 
Additions
 
 
 
 
 
 
 
Balance at Beginning of Period
 
Charged to
Costs and
Expenses
 
Charged to
Other
Accounts
 
Deductions (a)
 
Balance at
End of
Period
 
2018
 
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
594

 
$
77

 
$
(3
)
 
$
—

 
$
668

(b) 
 
 
 
 
 
 
 
 
 
 


 
Environmental, litigation, tax and other reserves
 
$
935

 
$
140

 
$
85

 
$
(166
)
 
$
994

(c) 
2017
 
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
558

 
$
37

 
$
(2
)
 
$
1

 
$
594

(b) 
 
 
 
 
 
 
 
 
 
 
 
 
Environmental, litigation, tax and other reserves
 
$
997

 
$
45

 
$
53

 
$
(160
)
 
$
935

(c) 
2016
 
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
20

 
$
543

 
$
(3
)
 
$
(2
)
 
$
558

(b) 
 
 
 
 
 
 
 
 
 
 
 
 
Environmental, litigation, tax and other reserves
 
$
479

 
$
61

 
$
531

 
$
(74
)
 
$
997

(c) 
Note:  The amounts presented represent continuing operations.
(a)
Primarily represents payments.
(b)
Of these amounts, $24 million, $18 million and $17 million in 2018, 2017 and 2016, respectively, are classified as current.
(c)
Of these amounts, $146 million, $163 million and $197 million in 2018, 2017 and 2016, respectively, are classified as current.