CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
FROM OPERATIONS
Investment income, net	$ 210.1	$ 179.8	$ 569.0	$ 566.5
Net realized loss on investments	(83.2)	(145.1)	(347.0)	(127.6)
Net change in unrealized loss on investments and debt	(221.0)	(669.5)	(1,347.1)	(3,040.0)
NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS	(94.1)	(634.8)	(1,125.1)	(2,601.1)
FROM TRANSACTIONS BY CONTRACT OWNERS AND TIAA
Premiums	697.2	484.7	2,131.7	1,535.1
Purchase of liquidity units by TIAA	0.0	189.9	293.7	189.9
Annuity payments	(11.1)	(13.7)	(35.6)	(41.9)
Death benefits	(35.6)	(43.3)	(112.0)	(121.5)
Withdrawals	(711.1)	(1,046.8)	(2,400.5)	(3,684.5)
NET DECREASE IN NET ASSETS RESULTING FROM TRANSACTIONS BY CONTRACT OWNERS AND TIAA	(60.6)	(429.2)	(122.7)	(2,122.9)
NET DECREASE IN NET ASSETS	(154.7)	(1,064.0)	(1,247.8)	(4,724.0)
NET ASSETS
Beginning of period	22,525.8	25,998.1	23,618.9	29,658.1
End of period	$ 22,371.1	$ 24,934.1	$ 22,371.1	$ 24,934.1