From looking at the budgets from 2014[1], it's increasing. Also the "$150 million" cut figure is the difference between the council approved budget and the mayor's proposed budget, not the difference from the previous year.
In billions of dollars:
2014-2015: $1.338
2015-2016: $1.438
2016-2017: $1.485
2017-2018: $1.578
2018-2019: $1.609
2019-2020: $1.733
2020-2021: $1.721
2021-2022: $1.760
The city also took on $47 million in overtime debt in the year that the budget was cut [2]
