CONSOLIDATED INVESTMENT PRODUCTS - Schedule of Statement of Cash Flows (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 1,341.6	$ 1,162.8
Net cash provided by (used in) investing activities	(717.4)	(56.8)
Net cash provided by (used in) financing activities	(730.6)	(687.3)
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.3)	(1.1)
Net change in cash and cash equivalents during period	(107.7)	417.6
Cash and cash equivalents at beginning of year	3,417.3	2,712.9
Cash and cash equivalents at end of period	3,309.6	3,130.5
Consolidated T. Rowe Price investment products
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(433.4)	(306.0)
Net cash provided by (used in) investing activities	(0.7)	(1.1)
Net cash provided by (used in) financing activities	471.6	316.7
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.3)	(1.1)
Net change in cash and cash equivalents during period	36.2	8.5
Cash and cash equivalents at beginning of year	39.1	63.1
Cash and cash equivalents at end of period	75.3	71.6
Voting interest entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(152.5)	(161.6)
Net cash provided by (used in) investing activities	(0.1)	0.5
Net cash provided by (used in) financing activities	176.3	155.1
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	0.0	0.0
Net change in cash and cash equivalents during period	23.7	(6.0)
Cash and cash equivalents at beginning of year	3.0	7.2
Cash and cash equivalents at end of period	26.7	1.2
Variable interest entities
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(280.9)	(144.4)
Net cash provided by (used in) investing activities	(0.6)	(1.6)
Net cash provided by (used in) financing activities	295.3	161.6
Effect of exchange rate changes on cash and cash equivalents of consolidated investment products	(1.3)	(1.1)
Net change in cash and cash equivalents during period	12.5	14.5
Cash and cash equivalents at beginning of year	36.1	55.9
Cash and cash equivalents at end of period	$ 48.6	$ 70.4

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