Two weeks of orientation/basic indoc in Dallas learning company policies and "how to be an airline pilot at AA". There's other stuff in there like leadership training, TEM, and emergency equipment training. You'll also spend a lot of time inprocessing as an employee during indoc (email/systems access, pay, bennies, etc.).
After that (a few days after indoc), you'll do a one-day base indoc wherever you were assigned.
After that (2-4 weeks on avg.), you'll go back to Dallas (everything except E190) or go to Charlotte (E190) for aircraft training. 737's and 320's have 20-25 hrs of CBT's before you show up. E190's don't. Aircraft training (ground school/sims) last about 3-1/2 to 4 weeks.
After that, observation rides and OE. International assignments get an additional 2-3 days of international training in Dallas.
I think that's about it...