The fact that Chris Jericho signed with All Elite Wrestling was somewhat of a surprise in itself. But Jericho saying that his AEW contract is better than any previous wrestling contract he's signed was downright shocking.
While the exact numbers aren't known, word of his AEW contract did make its way back to the WWE locker room. Dave Meltzer spoke about the reaction Jericho's contract received on Wrestling Observer Radio.
Meltzer said that people backstage in WWE were stunned or freaked out, depending on their position. While it's not as much as what John Cena or Brock Lesnar is making, it would be more than almost any other star in the company.
When the idea of Brock Lesnar possibly signing with AEW with the amount of money that they're throwing around, Meltzer noted that Vince McMahon would probably pay anything to not lose Lesnar to UFC or AEW. However, Meltzer did say that Jericho wants a match with Lesnar, and Jericho "has a lot of sway" in AEW, although that doesn't mean that the company would make a bad deal.
People Backstage In WWE "Stunned" By Chris Jericho's AEW Contract, Jericho - Brock Lesnar Note - Wrestling Inc.