Income Tax	9 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Tax	13. Income TaxFor the three months and nine months ended September 30, 2022, the effective tax rate on income (loss) before provision for income tax was 5% and (7%), respectively. The Company’s effective tax rate for the three months ended September 30, 2022 differed from the U.S. statutory rate primarily due to tax benefits from foreign earnings taxed at different rates than the U.S. statutory rate and tax credits. The Company’s effective tax rate for the nine months ended September 30, 2022 reflected an income tax benefit despite having income before provision for income tax and differed from the U.S. statutory rate primarily due to tax benefits from foreign earnings taxed at different rates than the U.S. statutory rate, tax credits, the corporate tax deduction for stock compensation and non-taxable investment income.For the three months and nine months ended September 30, 2021, the effective tax rate on income (loss) before provision for income tax was 22% and 21%, respectively. The Company’s effective tax rate for the three months ended September 30, 2021 differed from the U.S. statutory rate primarily due to tax charges from foreign earnings taxed at different rates than the U.S. statutory rate and the completed sale of its wholly-owned Argentinian subsidiary, MetLife Seguros S.A. (“MetLife Seguros”), partially offset by tax benefits related to tax credits and non-taxable investment income. The Company’s effective tax rate for the nine months ended September 30, 2021 was equal to the statutory rate of 21%, primarily due to tax charges from foreign earnings taxed at different rates than the U.S. statutory rate, the completed sales of MetLife P&C and MetLife Seguros and the pending disposition of MetLife Poland and Greece, offset by tax benefits related to tax credits, non-taxable investment income and the corporate tax deduction for stock compensation.