CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
FROM OPERATIONS
Investment income, net	$ 205.3	$ 172.4
Net realized (loss) gain on investments	(485.9)	146.1
Net change in unrealized appreciation on investments and loans payable	301.0	124.3
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	20.4	442.8
FROM PARTICIPANT TRANSACTIONS
Premiums	702.6	677.4
Annuity payments	(12.3)	(11.5)
Withdrawals and death benefits	(2,003.5)	(629.6)
NET (DECREASE) INCREASE IN NET ASSETS RESULTING FROM PARTICIPANT TRANSACTIONS	(1,313.2)	36.3
NET (DECREASE) INCREASE IN NET ASSETS	(1,292.8)	479.1
NET ASSETS
Beginning of period	27,307.9	25,842.6
End of period	$ 26,015.1	$ 26,321.7