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Supplemental Cash Flows Information
 12 Months Ended
Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flows Information
Supplemental Cash Flows Information
 
Years Ended December 31,
(in millions)
2011
 
2010
 
2009
Cash paid (received)
 
 
 
 
 
Interest (net of amount capitalized)1
$
290

 
$
239

 
$
301

Income taxes
(216
)
 
(96
)
 
(131
)
Cash payments under plant operating leases
311

 
325

 
336

Details of assets acquired
 
 

 

Fair value of assets acquired
$
1

 
$
1

 
$
14

Liabilities assumed
—

 
—

 
3

Net assets acquired
$
1

 
$
1

 
$
11

Non-cash activities from consolidation of VIEs
 
 

 

Assets
$
—

 
$
94

 
$
3

Liabilities
—

 
99

 
4

Non-cash activities from deconsolidation of variable interest entities
 
 

 

Assets
$
—

 
$
249

 
$
—

Liabilities
—

 
253

 
—

Non-cash activities from accrued capital expenditures
$
(46
)
 
$
32

 
$
(18
)
Non-cash activities from vendor financing
$
21

 
$
190

 
$
—

1 
Interest capitalized for December 31, 2011, 2010 and 2009 was $27 million, $54 million and $19 million, respectively.
In connection with certain wind projects acquired during the past five years, the purchase price included payments that were due upon the completion of specific construction activities or the achievement of operational milestones. Accordingly, EME accrues for estimated payments when the obligation is probable. These incremental purchase price payments are capitalized.