Yum brands return 13 5 billion shareholders 2019

According to the Yum! Brands' 2019 Annual Report, the company had approximately 13.5 billion shares outstanding as of December 31, 2019.

Here is the relevant information from the report:

Common Stock

Note that the outstanding shares figure is the number of shares that are publicly traded and held by shareholders, while the treasury shares figure represents shares that are held by the company itself and are not available for trading.