Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member’s Equity	Accumulated Other Comprehensive Income (Loss)
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	(2,100)
Comprehensive income (loss), net of tax	2,363
Ending Balance at Jun. 30, 2024	49,526	49,299	227
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
Beginning Balance at Dec. 31, 2024	50,641	50,060	581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(700)	(700)	0
Comprehensive income (loss), net of tax	1,209	1,214	(5)
Ending Balance at Mar. 31, 2025	51,150	50,574	576
Beginning Balance at Dec. 31, 2024	50,641	50,060	581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(2,200)
Comprehensive income (loss), net of tax	2,669
Ending Balance at Jun. 30, 2025	51,110	50,540	570
Beginning Balance at Mar. 31, 2025	51,150	50,574	576
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash distributions	(1,500)	(1,500)	0
Comprehensive income (loss), net of tax	1,460	1,466	(6)
Ending Balance at Jun. 30, 2025	$ 51,110	$ 50,540	$ 570

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.