Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

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 September 30, 2019:

									Long-term				Demand
	Purchased				Capital		Fuel and		Service		Operating		Side
(millions)	Power		Transportation		Projects		Gas Supply		Agreements		Leases		Management		Total
2019	$	6	$	50	$	186	$	85	$	0	$	1	$	1	$	329
2020		0		198		127		217		6		2		1		551
2021		0		210		28		49		7		3		0		297
2022		0		212		8		3		10		3		0		236
2023		0		189		1		1		13		3		0		207
Thereafter		0		2,206		0		0		86		53		0		2,345
Total future minimum payments	$	6	$	3,065	$	350	$	355	$	122	$	65	$	2	$	3,965