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Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2021

Significant affiliate transactions among the companies and related parties for the years ended Dec. 31:


(Millions of Dollars)	2021		2020		2019
Operating expenses:

Other operating expenses — paid to Xcel Energy Services Inc.	$	209	$	200	$	192

Accounts receivable and payable with affiliates at Dec. 31 were:


	2021				2020
(Millions of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	2	$	—	$	3	$	—
PSCo	7		—		6		—
Other subsidiaries of Xcel Energy Inc.	—		16		—		17
	$	9	$	16	$	9	$	17