Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member’s Equity	Accumulated Other Comprehensive Income (Loss)
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
Beginning Balance at Dec. 31, 2023	49,263	49,029	234
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(500)	(500)	0
Comprehensive income (loss), net of tax	1,140	1,143	(3)
Ending Balance at Mar. 31, 2024	$ 49,903	$ 49,672	$ 231