Walmart e-commerce growth, majority of those sales are on Walmart.com and Jet.com
Walmart's reported growth percentages are on a constant-currency basis (Amazon's are not), so it benefits from its overseas sales as the dollar strengthens.
Last reported quarter 2016 Q4 it was 15.5%, up by 94% year-over-year from 8.0%.
Source: Walmart Quarterly Results.