Summary of Accounting Policies (Variable Interest Entities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Schedule of Investments [Line Items]
Total assets	$ 21,695	$ 22,838
Property, plant and equipment, net	$ 5,076	5,273
Variable Interest Entity, Primary Beneficiary
Schedule of Investments [Line Items]
Ownership percentage	50.00%
Total assets	$ 543	574
Property, plant and equipment, net	452	491
Variable Interest Entity, Not Primary Beneficiary
Schedule of Investments [Line Items]
Maximum exposure to loss	$ 190	$ 208