QUEST DIAGNOSTICS INC | 2013 | FY | 3

SUPPLEMENTAL CASH FLOW & OTHER DATA

Supplemental cash flow data for the years ended December 31, 2013, 2012 and 2011 is as follows:
    
 
2013
 
2012
 
2011
 
 
 
 
 
 
Depreciation expense
$
204

 
$
207

 
$
214

Amortization expense
79

 
80

 
67

 
 
 
 
 
 
Interest paid
167

 
163

 
162

Income taxes paid
568

 
305

 
285

 
 
 
 
 
 
Assets acquired under capital leases
13

 
6

 
8

 
 
 
 
 
 
Businesses acquired:
 

 
 

 
 
Fair value of assets acquired
280

 
51

 
1,560

Fair value of liabilities assumed
16

 
—

 
148

 
 
 
 
 
 
Fair value of net assets acquired
264

 
51

 
1,412

Merger consideration paid (payable)
(50
)
 
—

 
(1
)
 
 
 
 
 
 
Cash paid for business acquisitions
214

 
51

 
1,411

Less: Cash acquired
1

 
—

 
112

 
 
 
 
 
 
Business acquisitions, net of cash acquired
$
213

 
$
51

 
$
1,299



Supplemental continuing operations data for the statement of operations for the years ended December 31, 2013, 2012 and 2011 is as follows:
 
2013
 
2012
 
2011
 
 
 
 
 
 
Depreciation expense
$
203

 
$
204

 
$
211

 
 
 
 
 
 
Interest expense
(162
)
 
(168
)
 
(172
)
Interest income
3

 
3

 
2

 
 
 
 
 
 
Interest expense, net
$
(159
)
 
$
(165
)
 
$
(170
)

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