If you're talking about Walmart, they announced a one-time bonus of up to $1,000. Walmart estimates that it will cost about $400 million [1], and they employ 2.3 million people [2], so the average bonus is under $200. Meanwhile Walmart will save about $1.8 billion a year in taxes, every year, thanks to the tax cut.
Also is that $1,000 if you're a 20 year employee? So for 20 years of service you get a $50 gift card worth of bonus once a year? No thanks, I'll take a permanent living wage increase instead.
Walmart said it's raising it's minimum wage in addition to bonuses. And there are 163 other companies giving bonuses. But sure, it would be nice for the employees if Walmart gave more of that savings to them.
[1] https://www.bloomberg.com/news/articles/2018-01-11/wal-mart-...
[2] https://www.google.be/search?q=number+of+employees+walmart