Note 6 - Stockholders' Equity and Equity Compensation (Detail) - Additional Stock Option Information (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013
Amount collected from stock option exercises	$ 207
Total intrinsic value of stock option exercises	52
Tax benefit of stock option exercises recorded in additional paid-in-capital	6
Aggregate intrinsic value of outstanding stock options	2,305
Aggregate intrinsic value of exercisable stock options	$ 2,298

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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+ Details