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Condensed Consolidated Statements of Financial Position (Parenthetical) - USD ($) shares in Millions, $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Equity securities | $ 2,526.3 | $ 2,013.4
Mortgage loans | 18,177.2 | 17,343.0
Real estate | 1,833.4 | 1,797.3
Other investments | 5,216.5 | 5,126.8
Other investments measured at fair value under fair value option | 37.8 | 28.5
Separate account assets | 177,829.0 | 175,951.4
Contractholder funds | 43,082.1 | 43,237.7
Separate account liabilities | 177,829.0 | 175,951.4
Other liabilities | 7,784.7 | 7,582.1
Redeemable noncontrolling interest | $ 263.5 | $ 255.6
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, authorized (in shares) | 2,500.0 | 2,500.0
Common stock, issued (in shares) | 483.3 | 481.9
Common stock, outstanding (in shares) | 272.5 | 273.3
Treasury stock (in shares) | 210.8 | 208.6
Aggregate consolidated variable interest entities |  |
Equity securities | $ 873.6 | $ 902.5
Mortgage loans | 684.9 | 319.0
Real estate | 513.4 | 476.8
Other investments | 362.2 | 348.5
Separate account assets | 40,798.1 | 41,138.9
Contractholder funds | 378.6 | 388.6
Separate account liabilities | 40,798.1 | 41,138.9
Other liabilities | 44.7 | 24.5
Redeemable noncontrolling interest | $ 226.8 | $ 226.8

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