General, Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Regulatory Assets and Liabilities [Table Text Block]

Our current and noncurrent regulatory asset and liability balances for the years ended December 31, 2020 and 2019 are as follows:

	December 31,
	2020		2019
	(Millions)
Current assets reported within Other current assets and deferred charges	$	64	$	72
Noncurrent assets reported within Regulatory assets, deferred charges, and other	442		466
Total regulated assets	$	506	$	538
Current liabilities reported within Accrued liabilities	$	59	$	60
Noncurrent liabilities reported within Regulatory liabilities, deferred income, and other	1,314		1,277
Total regulated liabilities	$	1,373	$	1,337