Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member’s Equity	Accumulated Other Comprehensive Income (Loss)
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, 2022	47,236	47,042	194
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	0
Comprehensive income (loss), net of tax	1,240	1,247	(7)
Ending Balance at Mar. 31, 2023	$ 48,476	$ 48,289	$ 187