XML 83 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1
Units Outstanding (Tables)
 12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Changes in Units Outstanding
Changes in AB Units outstanding for the years ended December 31, 2018 and 2017 were as follows:
 
2018
 
2017
Outstanding as of January 1,
268,659,333

 
268,893,534

Options exercised
889,119

 
1,179,860

Units issued
6,153,320

 
5,546,695

Units retired(1)
(6,851,496
)
 
(6,960,756
)
Outstanding as of December 31,
268,850,276

 
268,659,333