Borrowings and Other Financing Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Commercial Paper

Commercial paper outstanding for Xcel Energy was as follows:

(Amounts in Millions, Except Interest Rates)	Three Months Ended Dec. 31, 2016
Borrowing limit	$	2,750
Amount outstanding at period end	392
Average amount outstanding	290
Maximum amount outstanding	582
Weighted average interest rate, computed on a daily basis	0.75		%
Weighted average interest rate at period end	0.95

	Year Ended Dec. 31
(Amounts in Millions, Except Interest Rates)	2016			2015			2014
Borrowing limit	$	2,750		$	2,750		$	2,750
Amount outstanding at period end	392			846			1,020
Average amount outstanding	485			601			841
Maximum amount outstanding	1,183			1,360			1,200
Weighted average interest rate, computed on a daily basis	0.74		%	0.48		%	0.33		%
Weighted average interest rate at end of period	0.95			0.82			0.56

Schedule Of Debt To Total Capitalization Ratio

Each entity was in compliance at Dec. 31, 2016 and 2015, respectively, as evidenced by the table below:

	Debt-to-Total Capitalization Ratio
	2016		2015
Xcel Energy Inc.	57	%	57	%
NSP-Wisconsin	47		46
NSP-Minnesota	48		48
SPS	47		46
PSCo	45		45

Credit Facilities

At Dec. 31, 2016, Xcel Energy Inc. and its utility subsidiaries had the following committed credit facilities available:

(Millions of Dollars)	Credit Facility (a)		Drawn (b)		Available
Xcel Energy Inc.	$	1,000	$	68	$	932
PSCo	700		132		568
NSP-Minnesota	500		96		404
SPS	400		55		345
NSP-Wisconsin	150		60		90
Total	$	2,750	$	411	$	2,339

^(a)  These credit facilities mature in June 2021.

^(b)  Includes outstanding commercial paper and letters of credit.

Schedule of Maturities of Long-term Debt

Maturities of long-term debt are as follows:

(Millions of Dollars)
2017	$	256
2018	1,206
2019	406
2020	1,257
2021	425