EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income attributable to Invesco Ltd.	$ 141.5	$ 145.0
Weighted average common shares outstanding - basic (shares)	453.2	458.1
Dilutive effect of non-participating common share-based awards (shares)	0.3	0.8
Weighted average common shares outstanding - diluted (shares)	453.5	458.9
Earnings per common share:
Basic (in USD per share)	$ 0.31	$ 0.32
Diluted (in USD per share)	$ 0.31	$ 0.32