Asset Impairment Expense (Tables)

6 Months Ended

Jun. 30, 2022

Impairment or Disposal of Tangible Assets Disclosure [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block]

The following table presents our asset impairment expense for the periods indicated (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Maritza	$	475	$	—	$	475	$	—
Ventanas 3 & 4	—		649		—		649
Puerto Rico	—		—		—		475
Angamos	—		155		—		155
Mountain View I & II	—		67		—		67
Other	7		1		8		(1)
Total	$	482	$	872	$	483	$	1,345