Thanks to my American salary and Swedish consumption level, my basic needs can be met for many months even if my salary drops to $0. (Not that I actually want paternity leave - it sounds boring.)
So, I'll assume you're above the crossover point. In Sweden, we tend to think that everybody should be able to be home with their kids, not just the ones with enough income to save up..
1) 46 weeks with 100% pay
or
2) 56 weeks with 80% pay
This is capped at ~ $70 K, but in practice many employers pay people on leave their normal salary (or 80% if you choose the longer leave period).