v2.4.0.8

Earnings (Losses) Per Share (Details 2) (USD $) In Billions, except Share data, unless otherwise specified | 12 Months Ended | 0 Months Ended
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | May 16, 2011 0.94% Senior Exchangeable Notes Due May 2011
Debt |  |  |  |
Average number of options and warrants excluded from diluted earnings (losses) per share (in shares) | 11,642,417 | 14,200,915 | 9,241,543 |
Purchase amount of 0.94% senior exchangeable notes due 2011 |  |  |  | $ 1.2

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