The Facebook Video Views section shows the total number of times your page's videos have been viewed during the selected period unlike the Video Views shown in the Content Reports, which are lifetime metrics. We break this down into 2 charts:
The left chart shows the split between paid (promoted videos played for at least 3 seconds, or for nearly their total length if they're shorter than 3 seconds) and organic (videos played for at least 3 seconds, or for nearly their total length if they're shorter than 3 seconds, by organic reach).
The right chart shows the split between autoplay (automatically played for at least 3 seconds, or for nearly their total length if they're shorter than 3 seconds) vs clicked (played for at least 3 seconds, or for nearly their total length if they're shorter than 3 seconds after people clicked play)