Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31, 2020:

									Long-term				Demand
	Purchased				Capital		Fuel and		Service		Operating		Side
(millions)	Power		Transportation		Projects		Gas Supply		Agreements		Leases		Management		Total
2020	$	32	$	154	$	165	$	152	$	32	$	2	$	3	$	540
2021		3		227		82		49		6		3		3		373
2022		0		229		78		3		7		3		3		323
2023		0		202		66		1		10		3		0		282
2024		0		195		0		0		11		3		0		209
Thereafter		0		2,069		0		0		41		50		0		2,160
Total future minimum payments	$	35	$	3,076	$	391	$	205	$	107	$	64	$	9	$	3,887