Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues
Premiums	$ 44,945	$ 44,283	$ 48,510
Universal life and investment-type product policy fees	4,974	5,152	5,225
Net investment income	21,273	19,908	15,916
Other revenues	2,601	2,526	2,630
Net investment gains (losses)	(1,184)	(2,824)	(1,260)
Net derivative gains (losses)	(1,623)	(2,140)	(2,251)
Total revenues	70,986	66,905	68,770
Expenses
Policyholder benefits and claims	44,728	44,590	49,507
Policyholder liability remeasurement (gains) losses	(206)	(45)	114
Market risk benefit remeasurement (gains) losses	(1,109)	(994)	(3,674)
Interest credited to policyholder account balances	8,339	7,860	3,894
Policyholder dividends	595	622	706
Other expenses	13,017	12,710	11,859
Total expenses	65,364	64,743	62,406
Income (loss) before provision for income tax	5,622	2,162	6,364
Provision for income tax expense (benefit)	1,178	560	1,062
Net income (loss)	4,444	1,602	5,302
Less: Net income (loss) attributable to noncontrolling interests	18	24	18
Net income (loss) attributable to MetLife, Inc.	4,426	1,578	5,284
Less: Preferred stock dividends	200	198	185
Net income (loss) available to MetLife, Inc.’s common shareholders	$ 4,226	$ 1,380	$ 5,099
Net income (loss) available to MetLife, Inc.’s common shareholders per common share:
Basic	$ 5.98	$ 1.82	$ 6.35
Diluted	$ 5.94	$ 1.81	$ 6.30