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Debt And Financing Arrangements (Schedule Of Debt) (Details) (USD $)
12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
7.00% Senior Notes Due June 15, 2019 [Member]
Dec. 31, 2011
7.25% Senior Notes Due June 15, 2021 [Member]
Jun. 14, 2011
9.125% Senior Notes Due April 1, 2018 [Member]
Jun. 14, 2011
4.00% Convertible Senior Notes Due April 1, 2017 [Member]
Jun. 14, 2011
9.00% Convertible Senior Notes Due August 1, 2012 [Member]
Dec. 31, 2011
6.75% Senior Notes Due July 1, 2013 [Member]
Dec. 31, 2010
6.75% Senior Notes Due July 1, 2013 [Member]
Dec. 31, 2011
8.75% Senior Notes Due August 1, 2016 [Member]
Dec. 31, 2010
8.75% Senior Notes Due August 1, 2016 [Member]
Dec. 31, 2011
7.25% Senior Notes Due October 10, 2020 [Member]
Dec. 31, 2010
7.25% Senior Notes Due October 10, 2020 [Member]
Debt Instrument [Line Items]                          
Commercial paper   $ 56,904,000                      
Indebtedness to banks under credit facilities 481,300,000                        
Senior notes     1,000,000,000 1,000,000,000       450,971,000 451,618,000 588,974,000 587,126,000 500,000,000 500,000,000
Other 21,903,000 14,093,000                      
Total 4,043,148,000 1,609,741,000                      
Less current maturities of debt and short-term borrowings 280,851,000 70,997,000                      
Long-term debt 3,762,297,000 1,538,744,000                      
Face value of senior notes               $ 450,000,000   $ 600,000,000      
Senior notes interest rate     7.00% 7.25% 9.125% 4.00% 9.00% 6.75%   8.75%   7.25%  
Due date of senior notes     Jun. 15, 2019 Jun. 15, 2021       Jul. 01, 2013   Aug. 01, 2016   Oct. 01, 2020