Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues
Premiums	$ 736	$ 847	$ 869
Universal life and investment-type product policy fees	2,839	2,982	3,190
Net investment income	3,528	3,486	3,235
Other revenues	302	266	287
Net investment gains (losses)	279	92	(204)
Net derivative gains (losses)	(132)	(2,046)	745
Total revenues	7,552	5,627	8,122
Expenses
Policyholder benefits and claims	5,689	3,538	3,180
Interest credited to policyholder account balances	1,061	1,031	1,047
Amortization of DAC and VOBA	696	395	1,011
Other expenses	1,844	1,809	1,763
Total expenses	9,290	6,773	7,001
Income (loss) before provision for income tax	(1,738)	(1,146)	1,121
Provision for income tax expense (benefit)	(433)	(338)	153
Net income (loss)	(1,305)	(808)	968
Less: Net income (loss) attributable to noncontrolling interests	1	1	1
Net income (loss) attributable to Brighthouse Life Insurance Company	$ (1,306)	$ (809)	$ 967