Annual report pursuant to Section 13 and 15(d)

Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)

v2.4.0.6
Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)
12 Months Ended
Dec. 31, 2012
Supplemental Disclosures to Consolidated Statements of Cash Flows [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
 
Years ended
December 31,
 
2012
 
2011
 
2010
 
amounts in millions
Cash paid for interest
$
20

 
12

 
66

 
 
 
 
 
 
Cash paid (received) for income taxes
$
129

 
193

 
161