Well, they spent approx 4 billion on purchasing the rights... they spent another 2 billion on the lands in the parks. So from 6 billion, they've made back about 1.5 billion from Force Awakens, about 500 million from Last Jedi (although they're mum about how much the China debacle cost them, so it could be a little less), about the same for Rogue One, and they lost an estimated 100-300 million on Solo. So right now they're about 3 billion and change underwater, but the issue will be that there's almost no way of getting real numbers on how much the lands will effect tickets or revenues for DL or WDW.
And in case you're wondering about why the movies don't have just their gross revenues counted, you have to remember that movies have a production cost, and then you double that production cost to get an approximate production cost + marketing figure (although TLJ is an exception because it received massive advertising in China and was removed from theaters after one week which may have incurred extra expenses).