Equity (Dividend Restrictions) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2022
Parent Company
Dividends Payable [Line Items]
Payments of Dividends	$ 550	$ 1,250	$ 0
Parent Company | Forecast [Member]
Dividends Payable [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval				$ 1,475
Brighthouse Life Insurance Co of NY
Dividends Payable [Line Items]
Payments of Dividends	$ 0	$ 0	$ 28
Brighthouse Life Insurance Co of NY | Forecast [Member]
Dividends Payable [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval				$ 0