Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock at Cost	Accumulated Other Comprehensive Income (Loss)	Total MetLife, Inc.'s Stockholders' Equity	Noncontrolling Interests
Beginning Balance at Dec. 31, 2021	$ 50,013	$ 0	$ 12	$ 33,511	$ 36,831	$ (18,157)	$ (2,451)	$ 49,746	$ 267
Treasury stock acquired in connection with share repurchases	(915)					(915)		(915)
Stock-based compensation	20			20				20
Dividends on preferred stock	(63)				(63)			(63)
Dividends on common stock	$ (397)				(397)			(397)
Dividend Per Share	$ 0.480
Change in equity of noncontrolling interests	$ 1							0	1
Net income (loss)	1,639				1,634			1,634	5
Other comprehensive income (loss), net of income tax	(7,595)						(7,593)	(7,593)	(2)
Ending Balance at Mar. 31, 2022	42,703	0	12	33,531	38,005	(19,072)	(10,044)	42,432	271
Beginning Balance at Dec. 31, 2022	30,125	0	12	33,616	40,332	(21,458)	(22,621)	29,881	244
Treasury stock acquired in connection with share repurchases	(787)					(787)		(787)
Treasury Stock, Value, Acquired, Cost Method, Excise Tax	7
Stock-based compensation	1			1				1
Dividends on preferred stock	(66)				(66)			(66)
Dividends on common stock	$ (389)				(389)			(389)
Dividend Per Share	$ 0.500
Change in equity of noncontrolling interests	$ (2)							0	(2)
Net income (loss)	85				80			80	5
Other comprehensive income (loss), net of income tax	3,456						3,474	3,474	(18)
Ending Balance at Mar. 31, 2023	$ 32,423	$ 0	$ 12	$ 33,617	$ 39,957	$ (22,245)	$ (19,147)	$ 32,194	$ 229