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]
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, 2022	47,236	47,042	194
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,100)
Comprehensive income (loss), net of tax	3,711
Ending Balance at Sep. 30, 2023	49,847	49,674	173
Beginning Balance at Mar. 31, 2023	48,476	48,289	187
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,100)	(1,100)	0
Comprehensive income (loss), net of tax	1,257	1,264	(7)
Ending Balance at Jun. 30, 2023	48,633	48,453	180
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss), net of tax	1,214	1,221	(7)
Ending Balance at Sep. 30, 2023	49,847	49,674	173
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
Beginning Balance at Dec. 31, 2023	49,263	49,029	234
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(2,800)
Comprehensive income (loss), net of tax	3,742
Ending Balance at Sep. 30, 2024	50,205	49,982	223
Beginning Balance at Mar. 31, 2024	49,903	49,672	231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,600)	(1,600)	0
Comprehensive income (loss), net of tax	1,223	1,227	(4)
Ending Balance at Jun. 30, 2024	49,526	49,299	227
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(700)	(700)	0
Comprehensive income (loss), net of tax	1,379	1,383	(4)
Ending Balance at Sep. 30, 2024	$ 50,205	$ 49,982	$ 223