Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member’s Equity	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2020	$ 44,004	$ 43,906	$ 98
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,000)	(1,000)	0
Comprehensive income (loss), net of tax	1,252	1,251	1
Ending Balance at Mar. 31, 2021	44,256	44,157	99
Beginning Balance at Dec. 31, 2020	44,004	43,906	98
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(2,400)
Comprehensive income (loss), net of tax	2,769
Ending Balance at Jun. 30, 2021	44,373	44,273	100
Beginning Balance at Mar. 31, 2021	44,256	44,157	99
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,400)	(1,400)	0
Comprehensive income (loss), net of tax	1,517	1,516	1
Ending Balance at Jun. 30, 2021	44,373	44,273	100
Beginning Balance at Dec. 31, 2021	46,449	46,096	353
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,000)	(1,000)	0
Comprehensive income (loss), net of tax	1,376	1,371	5
Ending Balance at Mar. 31, 2022	46,825	46,467	358
Beginning Balance at Dec. 31, 2021	46,449	46,096	353
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(2,100)
Comprehensive income (loss), net of tax	3,043
Ending Balance at Jun. 30, 2022	47,392	47,031	361
Beginning Balance at Mar. 31, 2022	46,825	46,467	358
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,100)	(1,100)	0
Comprehensive income (loss), net of tax	1,667	1,664	3
Ending Balance at Jun. 30, 2022	$ 47,392	$ 47,031	$ 361