Summary of Accounting Policies (Variable Interest Entities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Total assets	$ 26,272	$ 11,975
Property, plant and equipment (net of accumulated depreciation - 2022: $3,687; 2021: $3,484)	$ 5,584	4,193
Variable Interest Entity, Primary Beneficiary
Schedule of Investments [Line Items]
Ownership percentage	50.00%
Total assets	$ 627	628
Property, plant and equipment (net of accumulated depreciation - 2022: $3,687; 2021: $3,484)	544	560
Variable Interest Entity, Not Primary Beneficiary
Schedule of Investments [Line Items]
Maximum exposure to loss	$ 223	$ 235