Units Outstanding (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Changes in Units Outstanding

Changes in AB Units outstanding for the years ended December 31, 2019 and 2018 were as follows:

	2019		2018
Outstanding as of January 1,	268,850,276		268,659,333
Options exercised	511,894		889,119
Units issued	4,833,715		6,153,320
Units retired(1)	(3,815,571	)	(6,851,496	)
Outstanding as of December 31,	270,380,314		268,850,276

⁽¹⁾ During 2019 and 2018, we purchased 3,782 and 5,346 AB Units, respectively, in private transactions and retired them.