Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating revenues:
Total operating revenues	$ 6,145.6	$ 6,117.4	$ 5,314.1
Operating expenses:
Third-party distribution, service and advisory	1,947.6	1,893.0	1,608.2
Employee compensation	1,807.9	1,709.3	1,494.4
Marketing	83.3	135.6	134.8
Property, office and technology	512.3	494.1	410.5
General and administrative	480.8	404.2	324.4
Transaction, integration and restructuring	393.3	673.0	136.9
Total operating expenses	5,225.2	5,309.2	4,109.2
Operating income	920.4	808.2	1,204.9
Other income/(expense):
Equity in earnings of unconsolidated affiliates	72.7	56.4	33.8
Interest and dividend income	20.5	28.5	21.3
Interest expense	(129.3)	(135.7)	(111.5)
Other gains and losses, net	44.9	65.7	(40.0)
Other income/(expense) of CIP, net	139.9	149.8	29.6
Income before income taxes	1,069.1	972.9	1,138.1
Income tax provision	(261.6)	(235.1)	(255.0)
Net income	807.5	737.8	883.1
Net (income)/loss attributable to noncontrolling interests in consolidated entities	(45.9)	(49.5)	(0.3)
Dividends on preferred shares	(236.8)	(123.6)	0.0
Net income attributable to Invesco Ltd.	$ 524.8	$ 564.7	$ 882.8
Earnings per common share:
Basic (usd per share)	$ 1.14	$ 1.29	$ 2.14
Diluted (usd per share)	$ 1.13	$ 1.28	$ 2.14
Investment management fees
Operating revenues:
Total operating revenues	$ 4,451.0	$ 4,506.3	$ 4,082.3
Service and distribution fees
Operating revenues:
Total operating revenues	1,419.0	1,276.5	968.5
Performance fees
Operating revenues:
Total operating revenues	65.6	102.2	56.9
Other
Operating revenues:
Total operating revenues	$ 210.0	$ 232.4	$ 206.4