The number of outstanding (O) shares is equal to the number of issued (I) shares minus the number of treasury shares.
In this case Outstanding = Issued or 1,614,601,069 shares.
The float is what's on the open market.
Float is calculated by subtracting closely held shares -- owned by insiders, employees, the company's Employee Stock Ownership Plan or other major long-term shareholders -- from the total shares outstanding.
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