Actually, the Big Book (AA) suggests having a chat the morning after, when someone is feeling like crap. But that's for someone who might be ready to quit. I seriously doubt someone who drinks like your husband does will see any need to quit drinking. Not that he's not headed for alcoholism, but some people really ARE just plain heavy drinkers and are not alcoholics.
I agree with Sasha, that it's best if you focus on the fact that you fear for his health--you might want to look up some articles that talk about "safe" levels of drinking for adults. He's a ways beyond those. The articles also talk about various health risks as the result of excessive drinking.
And yes, talk about any times you have been embarrassed or scared by his drinking. You can tell him that it would make you feel a lot better if he would cut way back on his drinking. You never know, maybe he can and he will. If he doesn't, though, then either he can't (which suggests possible alcoholism) or he won't (which suggests a certain disregard for your wishes).
Do NOT try to talk with him WHILE he's drinking. Wait till he's sober and you have his attention.