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CONSOLIDATED T. ROWE PRICE INVESTMENT PRODUCTS. (Operating Results) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating expenses reflected in net operating income | $ (866.9) | $ (767.6) | $ (2,484.0) | $ (2,342.5)
Income before income taxes | 920.5 | 702.1 | 2,096.2 | 2,177.0
Net income (loss) attributable to redeemable non-controlling interests | 55.4 | (0.8) | 4.4 | 69.0
Consolidation eliminations |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating expenses reflected in net operating income | (2.7) | (2.6) | (7.3) | (6.3)
Consolidated T. Rowe Price investment products |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Income before income taxes | 96.8 | 7.9 | 1.6 | 165.7
Net income (loss) attributable to T. Rowe Price Group | 41.4 | 8.7 | (2.8) | 96.7
Net income (loss) attributable to redeemable non-controlling interests | 55.4 | (0.8) | 4.4 | 69.0
Consolidated T. Rowe Price investment products | Reportable entities |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating expenses reflected in net operating income | (4.4) | (3.7) | (11.7) | (10.6)
Net investment income (loss) reflected in non-operating income (loss) | 101.2 | 11.6 | 13.3 | 176.3
Income before income taxes | 96.8 | 7.9 | 1.6 | 165.7
Voting interest entities |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Income before income taxes | 12.4 | 0.9 | (6.9) | 19.3
Net income (loss) attributable to T. Rowe Price Group | 7.0 | 0.7 | (2.7) | 14.6
Net income (loss) attributable to redeemable non-controlling interests | 5.4 | 0.2 | (4.2) | 4.7
Voting interest entities | Reportable entities |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating expenses reflected in net operating income | (0.7) | (0.6) | (1.2) | (1.6)
Net investment income (loss) reflected in non-operating income (loss) | 13.1 | 1.5 | (5.7) | 20.9
Income before income taxes | 12.4 | 0.9 | (6.9) | 19.3
Variable interest entities |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Income before income taxes | 84.4 | 7.0 | 8.5 | 146.4
Net income (loss) attributable to T. Rowe Price Group | 34.4 | 8.0 | (0.1) | 82.1
Net income (loss) attributable to redeemable non-controlling interests | 50.0 | (1.0) | 8.6 | 64.3
Variable interest entities | Reportable entities |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |
Operating expenses reflected in net operating income | (3.7) | (3.1) | (10.5) | (9.0)
Net investment income (loss) reflected in non-operating income (loss) | 88.1 | 10.1 | 19.0 | 155.4
Income before income taxes | $ 84.4 | $ 7.0 | $ 8.5 | $ 146.4

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