I guess I wasn't sure what I was expecting until the miles actually posted. Looking at it, all it really is for elite members is double the miles than you accrue normally. I had a paid F to NRT in January that just posted, and I received base miles, plus the normal elite times 1.5, and then double the base miles again. So in this case, it wasn't even double my normal mileage accrual. But it works out nicely with the transatlantic/transpacific multiple bonuses.