Note 14: Earnings Per Share (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011
Weighted Average Number of Shares Outstanding, Basic	271.9	271.5	268.9
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	11.5	11.5	17.4
Incremental Common Shares Attributable to Call Options and Warrants		40.0	40.0
Aggregate Principal Amount Of Convertible Security Convertible Senior Notes (in Dollars)	$ 400	$ 400	$ 310
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			3.9

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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+ Details

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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