XML 90 R72.htm IDEA: XBRL DOCUMENT v2.4.0.6
Financings and Capitalization (Contingently Convertible Securities) (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Number of trading days, adjusted trigger price contingencies were met 20  
Number of trading days 30  
Conversion Price Adjustment Trigger 1.00%  
Debt Issuance, Principal $ 7,093,000,000 $ 7,206,000,000
2.875% Senior Notes [Member]
   
Maturity Date 2024  
Outstanding 226,000,000  
Adjusted Conversion Price $ 12.54  
Adjusted Trigger Price $ 15.04  
Senior Notes Interest Rate 2.875%  
5.50% Senior Notes [Member]
   
Maturity Date 2029  
Outstanding 172,000,000  
Adjusted Conversion Price $ 14.08  
Adjusted Trigger Price $ 18.31  
Trigger Price As Percent Of Conversion Price 130.00%  
Senior Notes Interest Rate 5.50%  
3.375% Contingently Convertible Senior Notes due 2023 [Member]
   
Senior Notes Interest Rate 3.375%  
Conversion Date January 2011  
Principal Converted 4,000,000  
Conversion Value per share of principal 1,994.21  
Common Stock Issued on Settlement 197,472  
Cash Paid on Settlement 4,000,000  
2.875% Convertible Senior Notes Due 2024 [Member]
   
Trigger Price As Percent Of Conversion Price 120.00%  
Senior Notes Interest Rate 2.875%  
Conversion Date December 2011  
Principal Converted 62,000,000  
Conversion Value per share of principal 1,654.13  
Common Stock Issued on Settlement 1,954,542  
Cash Paid on Settlement 62,000,000  
Repayment of Debt [Member] | 2.875% Convertible Senior Notes Due 2024 [Member]
   
Senior Notes Interest Rate 2.875%  
Conversion Date January 2012  
Principal Converted 73,000,000  
Conversion Value per share of principal 1,738.99  
Common Stock Issued on Settlement 2,464,138  
Cash Paid on Settlement 73,000,000  
Debt Issuance, Principal $ 1,000