Units Outstanding (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Changes in Units Outstanding

Changes in AB Units outstanding for the years ended December 31, 2020 and 2019 were as follows:

	2020	2019
Outstanding as of January 1,	270,380,314	268,850,276
Options exercised	5,182	511,894
Units issued	3,363,132	4,833,715
Units retired(1)	(3,238,970)	(3,815,571)
Outstanding as of December 31,	270,509,658	270,380,314

(1) During 2020 and 2019, we purchased 1,500 and 3,782 AB Units, respectively, in private transactions and retired them.