XML 24 R29.htm IDEA: XBRL DOCUMENT v2.4.0.6
Supplemental Cash Flow Information (Details) (USD $)
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Supplemental Cash Flow Information [Abstract]    
Interest (1) $ 97,445,000 $ 81,557,000
Income Taxes, Net of Refunds Received 162,125,000 83,818,000
Interest Costs Capitalized 24,000,000 30,000,000
Accrued Capital Expenditures $ 857,000,000 $ 763,000,000