Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Preferred Shares	Common Shares	Additional Paid-in-Capital	Treasury Shares	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Total Equity Attributable to Invesco Ltd.	Nonredeemable Noncontrolling Interests in Consolidated Entities
Beginning balance at Dec. 31, 2020	$ 14,808.9	$ 4,010.5	$ 113.2	$ 7,811.4	$ (3,253.8)	$ 6,085.0	$ (404.5)	$ 14,361.8	$ 447.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	1,931.4					1,629.8		1,629.8	301.6
Other comprehensive income/(loss)	(37.0)						(37.0)	(37.0)
Change in noncontrolling interests in consolidated entities, net	(76.5)								(76.5)
Dividends declared - preferred	(236.8)					(236.8)		(236.8)
Dividends declared - common	(308.8)					(308.8)		(308.8)
Employee common share plans:
Common share-based compensation	140.1			140.1				140.1
Vested common shares	0.0			(263.0)	263.0			0.0
Other common share awards	7.6			(0.5)	8.1			7.6
Purchase of common shares	(60.9)				(60.9)			(60.9)
Ending balance at Dec. 31, 2021	16,168.0	4,010.5	113.2	7,688.0	(3,043.6)	7,169.2	(441.5)	15,495.8	672.2
Beginning balance at Dec. 31, 2020	211.8
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	38.0
Change in noncontrolling interests in consolidated entities, net	261.0
Ending balance at Dec. 31, 2021	510.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	929.5					920.7		920.7	8.8
Other comprehensive income/(loss)	(500.9)						(500.9)	(500.9)
Change in noncontrolling interests in consolidated entities, net	(51.1)								(51.1)
Dividends declared - preferred	(236.8)					(236.8)		(236.8)
Dividends declared - common	(334.8)					(334.8)		(334.8)
Employee common share plans:
Common share-based compensation	106.2			106.2				106.2
Vested common shares	0.0			(228.6)	228.6
Other common share awards	8.1			(10.7)	18.8			8.1
Purchase of common shares	(244.7)				(244.7)			(244.7)
Ending balance at Dec. 31, 2022	15,843.5	4,010.5	113.2	7,554.9	(3,040.9)	7,518.3	(942.4)	15,213.6	629.9
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	(4.0)
Change in noncontrolling interests in consolidated entities, net	491.9
Ending balance at Dec. 31, 2022	998.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income/(loss)	(132.1)					(96.9)		(96.9)	(35.2)
Other comprehensive income/(loss)	140.6						140.6	140.6
Change in noncontrolling interests in consolidated entities, net	(22.0)								(22.0)
Dividends declared - preferred	(236.8)					(236.8)		(236.8)
Dividends declared - common	(357.9)					(357.9)		(357.9)
Employee common share plans:
Common share-based compensation	114.6			114.6				114.6
Vested common shares	0.0			(209.2)	209.2
Other common share awards	7.9			(8.7)	16.6			7.9
Purchase of common shares	(187.5)				(187.5)			(187.5)
Ending balance at Dec. 31, 2023	15,170.3	$ 4,010.5	$ 113.2	$ 7,451.6	$ (3,002.6)	$ 6,826.7	$ (801.8)	$ 14,597.6	$ 572.7
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income	(36.1)
Change in noncontrolling interests in consolidated entities, net	(216.9)
Ending balance at Dec. 31, 2023	$ 745.7