Condensed Consolidated Statements of Financial Position (Parenthetical) - USD ($) shares in Millions, $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fixed maturities, available-for-sale	$ 74,269.2	$ 70,106.2
Equity securities	1,778.5	1,879.4
Real estate	1,699.7	1,714.8
Other investments	4,734.4	4,690.2
Other investments measured at fair value under fair value option	25.4	22.8
Separate account assets	155,936.3	165,468.0
Contractholder funds	42,308.4	41,367.5
Long-term debt	4,163.4	3,734.1
Separate account liabilities	155,936.3	165,468.0
Other liabilities	7,280.0	6,863.7
Redeemable noncontrolling interest	$ 272.7	$ 264.9
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)	481.1	479.3
Common stock, outstanding (in shares)	274.0	276.6
Treasury stock (in shares)	207.1	202.7
Aggregate consolidated variable interest entities
Fixed maturities, available-for-sale		$ 99.4
Equity securities	$ 837.6	810.9
Real estate	428.0	457.6
Other investments	294.2	263.7
Separate account assets	36,058.8	39,130.3
Contractholder funds	395.5	394.6
Long-term debt		64.2
Separate account liabilities	36,058.8	39,130.3
Other liabilities	38.2	124.4
Redeemable noncontrolling interest	$ 197.5	$ 215.4

Contractholder funds include reserves for investment contracts and reserves for universal life insurance.

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