Commitments (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Electricity Purchase Contract Commitment

The following table shows the future minimum commitments for continuing operations under these contracts as of December 31, 2020 for 2021 through 2025 and thereafter as well as actual purchases under these contracts for the years ended December 31, 2020, 2019, and 2018 (in millions):

Actual purchases during the year ended December 31,	Electricity Purchase Contracts		Fuel Purchase Contracts		Other Purchase Contracts
2018	$	827	$	1,838	$	1,671
2019	1,597		1,824		1,684
2020	756		1,573		1,506
Future commitments for the year ending December 31,
2021	$	700	$	1,370	$	1,904
2022	500		815		636
2023	447		609		605
2024	434		495		570
2025	434		457		526
Thereafter	5,037		1,445		1,816
Total	$	7,552	$	5,191	$	6,057