Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Fixed maturities, available-for-sale, amortized cost		$ 346,574	$ 331,745
Fixed maturities, held to maturity, fair value		2,302	2,372
Fixed Maturities, Trading, Amortized Cost		3,917	3,392
Equity securities, at cost		5,560	5,219
Commercial mortgage and other loans	[1]	63,559	59,830
Other invested assets, at fair value		5,646	5,524
Notes issued by consolidated VIEs	[1]	$ 1,274	$ 955
Preferred Stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred Stock, shares authorized		10,000,000	10,000,000
Preferred Stock, shares issued		0	0
Common Stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized		1,500,000,000	1,500,000,000
Common stock, shares issued		666,305,189	660,111,339
Common Stock held in treasury, at cost, shares		267,472,781	249,398,887
Fair value option
Commercial mortgage and other loans		$ 228	$ 763
Notes issued by consolidated VIEs		$ 800	$ 595

[1] See Note 4 for details of balances associated with variable interest entities.