SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended December 31, 2016, 2015 and 2014

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Deductions from Reserves			Balance at End of Period
In thousands of dollars
For the year ended December 31, 2016
Allowances deducted from assets
Accounts receivable—trade, net (a)	$	32,638	$	174,314	$	—	$	(166,799	)	$	40,153
Valuation allowance on net deferred taxes (b)	207,055		28,430		—		—			235,485
Inventory obsolescence reserve (c)	22,632		30,053		—		(32,642		)	20,043
Total allowances deducted from assets	$	262,325	$	232,797	$	—	$	(199,441	)	$	295,681
For the year ended December 31, 2015
Allowances deducted from assets
Accounts receivable—trade, net (a)	$	15,885	$	172,622	$	—	$	(155,869	)	$	32,638
Valuation allowance on net deferred taxes (b)	147,223		59,832		—		—			207,055
Inventory obsolescence reserve (c)	11,748		32,434		—		(21,550		)	22,632
Total allowances deducted from assets	$	174,856	$	264,888	$	—	$	(177,419	)	$	262,325
For the year ended December 31, 2014
Allowances deducted from assets
Accounts receivable—trade, net (a)	$	14,329	$	153,652	$	—	$	(152,096	)	$	15,885
Valuation allowance on net deferred taxes (b)	87,159		60,064		—		—			147,223
Inventory obsolescence reserve (c)	564		24,660		—		(13,476		)	11,748
Total allowances deducted from assets	$	102,052	$	238,376	$	—	$	(165,572	)	$	174,856

(a) Includes allowances for doubtful accounts, anticipated discounts and write-offs of uncollectible accounts receivable.

(b) Includes adjustments to the valuation allowance for deferred tax assets that we do not expect to realize.

(c) Includes adjustments to the inventory reserve, transfers, disposals and write-offs of obsolete inventory.