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CONSOLIDATED T. ROWE PRICE INVESTMENT PRODUCTS. (Operating Results) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Condensed Income Statements, Captions [Line Items] |  |
Operating expenses reflected in net operating income | $ (755.4) | $ (794.8)
Income before income taxes | 206.9 | 735.3
Net income (loss) attributable to redeemable non-controlling interests | (176.5) | 41.4
Consolidation eliminations |  |
Condensed Income Statements, Captions [Line Items] |  |
Operating expenses reflected in net operating income | (2.5) | (1.5)
Consolidated T. Rowe Price investment products |  |
Condensed Income Statements, Captions [Line Items] |  |
Income before income taxes | (334.0) | 98.8
Net income (loss) attributable to T. Rowe Price Group | (157.5) | 41.4
Net income (loss) attributable to redeemable non-controlling interests | (176.5) | 57.4
Consolidated T. Rowe Price investment products | Reportable entities |  |
Condensed Income Statements, Captions [Line Items] |  |
Operating expenses reflected in net operating income | (3.7) | (3.1)
Net investment income (loss) reflected in non-operating income (loss) | (330.3) | 101.9
Income before income taxes | (334.0) | 98.8
Voting interest entities |  |
Condensed Income Statements, Captions [Line Items] |  |
Income before income taxes | (35.4) | 7.7
Net income (loss) attributable to T. Rowe Price Group | (22.6) | (1.0)
Net income (loss) attributable to redeemable non-controlling interests | (12.8) | 8.7
Voting interest entities | Reportable entities |  |
Condensed Income Statements, Captions [Line Items] |  |
Operating expenses reflected in net operating income | (0.2) | (0.3)
Net investment income (loss) reflected in non-operating income (loss) | (35.2) | 8.0
Income before income taxes | (35.4) | 7.7
Variable interest entities |  |
Condensed Income Statements, Captions [Line Items] |  |
Income before income taxes | (298.6) | 91.1
Net income (loss) attributable to T. Rowe Price Group | (134.9) | 42.4
Net income (loss) attributable to redeemable non-controlling interests | (163.7) | 48.7
Variable interest entities | Reportable entities |  |
Condensed Income Statements, Captions [Line Items] |  |
Operating expenses reflected in net operating income | (3.5) | (2.8)
Net investment income (loss) reflected in non-operating income (loss) | (295.1) | 93.9
Income before income taxes | $ (298.6) | $ 91.1

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