Accounting Changes and Error Corrections (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash Provided by (Used in) Operating Activity, Continuing Operation	$ (941)	$ (1,871)
Cash Provided by (Used in) Operating Activities	(969)	(2,028)
Cash provided by (used for) investing activities	(355)	(466)
EIDP
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash Provided by (Used in) Operating Activity, Continuing Operation	(941)	(1,886)
Cash Provided by (Used in) Operating Activities	(969)	(2,043)
Cash provided by (used for) investing activities	$ (355)	(1,557)
Previously Reported [Member] | EIDP
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash Provided by (Used in) Operating Activity, Continuing Operation		(2,977)
Cash Provided by (Used in) Operating Activities		(3,134)
Cash provided by (used for) investing activities		(466)
Revision of Prior Period, Error Correction, Adjustment | EIDP
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash Provided by (Used in) Operating Activity, Continuing Operation		1,091
Cash Provided by (Used in) Operating Activities		1,091
Cash provided by (used for) investing activities		$ (1,091)