XML 49 R31.htm IDEA: XBRL DOCUMENT

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2020

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


(Millions of Dollars)	2020		2019		2018
Operating expenses:

Other operating expenses — paid to Xcel Energy Services Inc.	$	200	$	192	$	195
Interest expense	—		—		1

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


	2020				2019
(Millions of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	3	$	—	$	4	$	—
PSCo	6		—		—		—
Other subsidiaries of Xcel Energy Inc.	—		17		—		20
	$	9	$	17	$	4	$	20