Schedule II - Valuation Accounts and Reserves

12 Months Ended

Dec. 31, 2015

Valuation and Qualifying Accounts [Abstract]

SCHEDULE II - VALUATION ACCOUNTS AND RESERVES

QUEST DIAGNOSTICS INCORPORATED AND SUBSIDIARIES

SCHEDULE II - VALUATION ACCOUNTS AND RESERVES

(in millions)

	Balance at Beginning of Year		Provision for Doubtful Accounts		Net Deductions and Other			Balance at End of Year
Year Ended December 31, 2015
Doubtful accounts and allowances	$	250	$	297	$	293	(a)	$	254
Year Ended December 31, 2014
Doubtful accounts and allowances	$	236	$	296	$	282	(a)	$	250
Year Ended December 31, 2013
Doubtful accounts and allowances	$	236	$	270	$	270	(a)	$	236

(a) Primarily represents the write-off of accounts receivable, net of recoveries.