Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Premiums	$ 42,009	$ 42,034	$ 42,235
Universal life and investment-type product policy fees	5,756	5,603	5,603
Net investment income	21,395	17,117	18,868
Other revenues	2,619	1,849	1,842
Net investment gains (losses)	1,529	(110)	444
Net derivative gains (losses)	(2,228)	1,349	628
Total revenues	71,080	67,842	69,620
Expenses
Policyholder benefits and claims	43,954	41,461	41,461
Interest credited to policyholder account balances	5,538	5,214	6,464
Policyholder dividends	876	1,090	1,211
Other expenses	12,586	13,150	13,689
Total expenses	62,954	60,915	62,825
Income (loss) before provision for income tax	8,126	6,927	6,795
Provision for income tax expense (benefit)	1,551	1,509	886
Net income (loss)	6,575	5,418	5,909
Less: Net income (loss) attributable to noncontrolling interests	21	11	10
Net income (loss) attributable to MetLife, Inc.	6,554	5,407	5,899
Less: Preferred stock dividends	195	202	178
Preferred stock redemption premium	6	14	0
Net income (loss) available to MetLife, Inc.’s common shareholders	$ 6,353	$ 5,191	$ 5,721
Net income (loss) available to MetLife, Inc.’s common shareholders per common share:
Basic	$ 7.36	$ 5.72	$ 6.10
Diluted	$ 7.31	$ 5.68	$ 6.06