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

			Additions
Valuation and Qualifying Accounts (in millions)	Balance at beginning of period		Charged to costs and expenses		Charged (credited) to other accounts (1)(2)			Deductions from reserves			Balance at end of period
Year ended December 31, 2016:
Allowance for doubtful accounts	$	110		16		11			(10	)	$	127
Deferred tax asset valuation allowance	$	135		16		3			(4	)	$	150
Year ended December 31, 2015:
Allowance for doubtful accounts	$	119		30		(10	)		(29	)	$	110
Deferred tax asset valuation allowance	$	129		30		(16	)		(8	)	$	135
Year ended December 31, 2014:
Allowance for doubtful accounts	$	148		1		(15	)		(15	)	$	119
Deferred tax asset valuation allowance	$	128		10		(6	)		(3	)	$	129

(1) Valuation accounts of acquired or divested companies and foreign currency translation adjustments.

(2) Amounts include adjustments related to the divestiture of the BioSciences business.

Reserves are deducted from assets to which they apply.