When I  was confirmed in the Roman church, I professed, "I believe and profess all that the holy Catholic Church believes, teaches, and proclaims to be revealed by God." As a Lutheran, I profess the exact same thing. I believe that the Lutheran Church teaches the Gospel of the undivided Church and that the one, holy, catholic, and apostolic Church subsists within the Lutheran Church.

I don't see evidence that Trent qualifies as a Council--certainly, the Eastern Church doesn't see it that way. By the same token, a decision limited to the bishops of the Eastern Church about the Augsburg Confession doesn't speak for the undivided Church either. Luther called for a genuine ecumenical council because he trusted his reforms were from the Holy Spirit, but none was ever held.

Listen to what the Pope says at the Lutheran mass this month--I bet you'll hear that Trent is no longer in force and that no infallible decisions have ever been made about Lutheran sacraments or ordination.