CONSOLIDATED INVESTMENT PRODUCTS - Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 1,685.6	$ 1,219.1	$ 2,359.4
Net cash provided by (used in) investing activities	(177.5)	128.2	(41.5)
Net cash provided by (used in) financing activities	(936.6)	(1,078.6)	(2,076.9)
FX impact on cash	(2.4)	0.4	9.5
Net change in cash and cash equivalents during year	569.1	269.1	250.5
Cash and cash equivalents at beginning of year	2,143.8	1,874.7	1,624.2
Cash and cash equivalents at end of year	2,712.9	2,143.8	1,874.7
Consolidated T. Rowe Price investment products
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents at beginning of year	77.2	119.1	101.1
Cash and cash equivalents at end of year	63.1	77.2	119.1
Consolidated T. Rowe Price investment products \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(633.8)	(888.9)	(77.2)
Net cash provided by (used in) investing activities	(15.8)	(56.8)	(8.7)
Net cash provided by (used in) financing activities	637.9	903.4	94.4
FX impact on cash	(2.4)	0.4	9.5
Net change in cash and cash equivalents during year	(14.1)	(41.9)	18.0
Cash and cash equivalents at beginning of year	77.2	119.1
Cash and cash equivalents at end of year	63.1	77.2	119.1
VOE \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(239.4)	(517.5)	(84.1)
Net cash provided by (used in) investing activities	(14.7)	(32.7)	0.1
Net cash provided by (used in) financing activities	235.6	559.7	92.9
FX impact on cash	0.0	0.0	0.0
Net change in cash and cash equivalents during year	(18.5)	9.5	8.9
Cash and cash equivalents at beginning of year	25.7	16.2	7.3
Cash and cash equivalents at end of year	7.2	25.7	16.2
VIE \| Reportable entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(394.4)	(371.4)	6.9
Net cash provided by (used in) investing activities	(1.1)	(24.1)	(8.8)
Net cash provided by (used in) financing activities	402.3	343.7	1.5
FX impact on cash	(2.4)	0.4	9.5
Net change in cash and cash equivalents during year	4.4	(51.4)	9.1
Cash and cash equivalents at beginning of year	51.5	102.9	93.8
Cash and cash equivalents at end of year	$ 55.9	$ 51.5	$ 102.9

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