CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 184,218	$ 449,301
Accounts receivable, net of allowance for doubtful accounts of $244,156 and $228,917 at June 30, 2011 and December 31, 2010, respectively	929,372	845,299
Inventories	87,967	76,572
Deferred income taxes	166,739	142,470
Prepaid expenses and other current assets	109,659	91,775
Total current assets	1,477,955	1,605,417
Property, plant and equipment, net	820,593	834,376
Goodwill	5,816,969	5,101,938
Intangible assets, net	1,082,171	796,405
Other assets	233,503	189,494
Total assets	9,431,191	8,527,630
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	998,682	865,272
Short-term borrowings and current portion of long-term debt	994,675	348,996
Total current liabilities	1,993,357	1,214,268
Long-term debt	3,332,931	2,641,160
Other liabilities	654,307	618,077
Stockholders' equity:
Common stock, par value $0.01 per share; 600,000 shares authorized at both June 30, 2011 and December 31, 2010; 214,597 shares and 214,173 shares issued at June 30, 2011 and December 31, 2010, respectively	2,146	2,142
Additional paid-in capital	2,317,074	2,311,421
Retained earnings	3,945,037	3,867,420
Accumulated other comprehensive income	34,043	10,626
Treasury stock, at cost; 56,385 shares and 43,456 shares at June 30, 2011 and December 31, 2010, respectively	(2,869,150)	(2,158,129)
Total Quest Diagnostics stockholders' equity	3,429,150	4,033,480
Noncontrolling interests	21,446	20,645
Total stockholders' equity	3,450,596	4,054,125
Total liabilities and stockholders' equity	$ 9,431,191	$ 8,527,630