Starwood and Marriott merged making Marriott the largest hospitality company in the world with over 1 million rooms. Starwood ceases to exist. Marriott now owns/manages what was under the Starwood umbrella:
Westin
Sheraton
The Luxury Collection
Four Points by Sheraton
W Hotels
St. Regis
Le Méridien
Aloft
Element
Tribute Portfolio
Design Hotels