Tip of the hat to Bobrsmith for pointing me to this work on Medicare-for-all done by the Urban Institute. They have studied several Medicare-for-all options.
One plan can be called the Cadillac Plan. It would be far more generous than current Medicare. It would cover dental, hearing, vision and long term care that Medicare does not cover. It would eliminate premiums and co-pays. And, it would cover every person living in this country bringing in 25.6 million legal residents and 10.8 undocumented residents. This Cadillac plan would increase National spending by $7 Trillion over 10 years increasing it from $52 Trillion to $59 Trillion.
They also worked with a Chevy plan. This would essentially extend current Medicare benefits, premiums and co-pays to all people legally resident in this country. Even though this plan covers 25.6 million people with no coverage currently it will REDUCE National spending by $2 Trillion over those ten years.