Long-term Debt	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Long-term Debt	On April 15, 2022, BHF entered into a new revolving credit agreement with respect to a new $1.0 billion senior unsecured revolving credit facility maturing April 15, 2027 (the “2022 Revolving Credit Facility”), all of which may be used for revolving loans or letters of credit. The 2022 Revolving Credit Facility refinanced and replaced BHF’s former $1.0 billion senior unsecured revolving credit facility that was scheduled to mature May 7, 2024. At June 30, 2022, there were no borrowings or letters of credit outstanding under the 2022 Revolving Credit Facility.