Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Premiums	$ 49,397	$ 42,009	$ 42,034
Universal life and investment-type product policy fees	5,585	5,756	5,603
Net investment income	15,916	21,395	17,117
Other revenues	2,634	2,619	1,849
Net investment gains (losses)	(1,262)	1,529	(110)
Net derivative gains (losses)	(2,372)	(2,228)	1,349
Total revenues	69,898	71,080	67,842
Expenses
Policyholder benefits and claims	50,612	43,954	41,461
Interest credited to policyholder account balances	3,692	5,538	5,214
Policyholder dividends	701	876	1,090
Other expenses	12,034	12,586	13,150
Total expenses	67,039	62,954	60,915
Income (loss) before provision for income tax	2,859	8,126	6,927
Provision for income tax expense (benefit)	301	1,551	1,509
Net income (loss)	2,558	6,575	5,418
Less: Net income (loss) attributable to noncontrolling interests	19	21	11
Net income (loss) attributable to MetLife, Inc.	2,539	6,554	5,407
Less: Preferred stock dividends	185	195	202
Preferred stock redemption premium	0	6	14
Net income (loss) available to MetLife, Inc.’s common shareholders	$ 2,354	$ 6,353	$ 5,191
Net income (loss) available to MetLife, Inc.’s common shareholders per common share:
Basic	$ 2.93	$ 7.36	$ 5.72
Diluted	$ 2.91	$ 7.31	$ 5.68