CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (3,942)	$ 430	$ 1,505	$ (279)
Other comprehensive income (loss) net of income taxes:
Change in unrealized gains (losses), net of reclassification adjustment	1,614	1,369	3,048	2,203
Changes in defined benefit plan related items not yet recognized in periodic benefit cost, net of reclassification adjustment	22	18	50	67
Foreign currency translation adjustment	6	1	(15)	0
Total other comprehensive income (loss), net of income taxes	1,642	1,388	3,083	2,270
Comprehensive income (loss)	(2,300)	1,818	4,588	1,991
Less: Comprehensive income (loss) attributable to the noncontrolling interest	89	66	118	131
Comprehensive income (loss) attributable to Holdings	$ (2,389)	$ 1,752	$ 4,470	$ 1,860