Schedule II - Valuation Accounts and Reserves

12 Months Ended

Dec. 31, 2013

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 1-1-13		Provision for Doubtful Accounts		Net Deductions and Other			Balance at 12-31-13
Year Ended December 31, 2013
Doubtful accounts and allowances	$	236	$	270	$	270	(a)	$	236
	Balance at 1-1-12		Provision for Doubtful Accounts		Net Deductions and Other			Balance at 12-31-12
Year Ended December 31, 2012
Doubtful accounts and allowances	$	237	$	269	$	270	(a)	$	236
	Balance at 1-1-11		Provision for Doubtful Accounts		Net Deductions and Other			Balance at 12-31-11
Year Ended December 31, 2011
Doubtful accounts and allowances	$	229	$	280	$	272	(a)	$	237

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