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, 2020	$ 74,817	$ 0	$ 12	$ 33,812	$ 36,491	$ (13,829)	$ 18,072	$ 74,558	$ 259
Treasury stock acquired in connection with share repurchases	(999)					(999)		(999)
Stock-based compensation	98			98				98
Dividends on preferred stock	(68)				(68)			(68)
Dividends on common stock	(408)				(408)			(408)
Change in equity of noncontrolling interests	9							0	9
Net income (loss)	363				358			358	5
Other comprehensive income (loss), net of income tax	$ (7,675)						(7,675)	(7,675)	0
Dividend Per Share	$ 0.460
Ending Balance at Mar. 31, 2021	$ 66,137	0	12	33,910	36,373	(14,828)	10,397	65,864	273
Beginning Balance at Dec. 31, 2020	74,817	0	12	33,812	36,491	(13,829)	18,072	74,558	259
Preferred stock redemption premium	(6)
Treasury stock acquired in connection with share repurchases	(2,100)
Dividends on preferred stock	(103)
Net income (loss)	3,775
Ending Balance at Jun. 30, 2021	69,423	0	12	33,440	39,318	(15,941)	12,309	69,138	285
Beginning Balance at Mar. 31, 2021	66,137	0	12	33,910	36,373	(14,828)	10,397	65,864	273
Redemption of preferred stock	(494)			(494)				(494)
Preferred stock redemption premium	(6)				(6)			(6)
Treasury stock acquired in connection with share repurchases	(1,113)					(1,113)		(1,113)
Stock-based compensation	24			24				24
Dividends on preferred stock	(35)				(35)			(35)
Dividends on common stock	(421)				(421)			(421)
Change in equity of noncontrolling interests	6							0	6
Net income (loss)	3,412				3,407			3,407	5
Other comprehensive income (loss), net of income tax	$ 1,913						1,912	1,912	1
Dividend Per Share	$ 0.480
Ending Balance at Jun. 30, 2021	$ 69,423	0	12	33,440	39,318	(15,941)	12,309	69,138	285
Beginning Balance at Dec. 31, 2021	67,749	0	12	33,511	41,197	(18,157)	10,919	67,482	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)
Change in equity of noncontrolling interests	2							0	2
Net income (loss)	674				669			669	5
Other comprehensive income (loss), net of income tax	$ (12,833)						(12,831)	(12,831)	(2)
Dividend Per Share	$ 0.480
Ending Balance at Mar. 31, 2022	$ 54,237	0	12	33,531	41,406	(19,072)	(1,912)	53,965	272
Beginning Balance at Dec. 31, 2021	67,749	0	12	33,511	41,197	(18,157)	10,919	67,482	267
Preferred stock redemption premium	0
Treasury stock acquired in connection with share repurchases	(2,000)
Dividends on preferred stock	(92)
Net income (loss)	812
Ending Balance at Jun. 30, 2022	37,367	0	12	33,548	41,101	(20,188)	(17,372)	37,101	266
Beginning Balance at Mar. 31, 2022	54,237	0	12	33,531	41,406	(19,072)	(1,912)	53,965	272
Preferred stock redemption premium	0
Treasury stock acquired in connection with share repurchases	(1,116)					(1,116)		(1,116)
Stock-based compensation	17			17				17
Dividends on preferred stock	(29)				(29)			(29)
Dividends on common stock	(408)				(408)			(408)
Change in equity of noncontrolling interests	(11)							0	(11)
Net income (loss)	138				132			132	6
Other comprehensive income (loss), net of income tax	$ (15,461)						(15,460)	(15,460)	(1)
Dividend Per Share	$ 0.500
Ending Balance at Jun. 30, 2022	$ 37,367	$ 0	$ 12	$ 33,548	$ 41,101	$ (20,188)	$ (17,372)	$ 37,101	$ 266