One of our (US) employers pays about 10% - 15% of our combined total compensation (read: salary plus "other personnel expenses") for a $250 deductible health insurance plan. And that's just the insurance premium. Dental is extra. 20% co-pay. Bills are always a surprise and full of errors. Sometimes the same service is coded in radically different ways, leading to claim denials and hundreds of dollars of variation in what's billed. It can take six months for a provider to get paid. People here routinely finance life-preserving medical treatment using credit cards. The per-practice administrative overhead for dealing with private insurance claims is estimated by quite a few (peer-reviewed) papers at between 15% and 30%.

If the wrong one of us changes jobs, all of this comes crashing down and I'm back to reading 200-page policies, figuring out what network I'm now in, and trying to determine if I can still see my normal doctor.

15% of after-tax income for no-questions-asked health care, sans any form of billing, sounds like a utopia to me.