Basis of Presentation and Accounting Policies Property, Plant and Equipment (PPE) and Repair and Maintenance Costs (Details)	12 Months Ended
	Dec. 31, 2021
Minimum
Property, Plant and Equipment [Line Items]
Depreciation range for PPE related to operations for which regulatory accounting does not apply	3 years
Depreciation range for PPE related to operations for which regulatory accounting is applicable	5 years
Maximum
Property, Plant and Equipment [Line Items]
Depreciation range for PPE related to operations for which regulatory accounting does not apply	35 years
Depreciation range for PPE related to operations for which regulatory accounting is applicable	62 years