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Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2023

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


(Millions of Dollars)	2023		2022		2021
Operating revenues:

Other	$	5	$	5	$	5
Operating expenses:
Other operating expenses — paid to Xcel Energy Services Inc.	679		670		617
Interest expense	5		2		—
Interest income	2		—		—

Accounts receivable and payable with affiliates at Dec. 31:


	2023				2022
(Millions of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	—	$	5	$	2	$	—
NSP-Wisconsin	—		1		—		2
SPS	—		11		—		11
Other subsidiaries of Xcel Energy Inc.	28		66		9		62
	$	28	$	83	$	11	$	75