Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Schedule of Long-term Commitments

The following is a schedule of future payments under PPAs, minimum lease payments with non-cancelable lease terms in excess of one year, and other net purchase obligations/commitments at June 30, 2021:

									Long-term				Demand
	Purchased				Capital		Fuel and		Service		Operating		Side
(millions)	Power		Transportation		Projects		Gas Supply		Agreements		Leases		Management		Total
2021	$	35	$	119	$	297	$	173	$	35	$	2	$	2	$	663
2022		0		232		84		52		32		3		3		406
2023		0		211		58		1		43		3		0		316
2024		0		205		0		0		26		3		0		234
2025		0		191		0		0		18		2		0		211
Thereafter		0		2,014		0		0		66		48		0		2,128
Total future minimum payments	$	35	$	2,972	$	439	$	226	$	220	$	61	$	5	$	3,958