Borrowings and Other Financing Instruments (Tables)

12 Months Ended

Dec. 31, 2015

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, 2015
Borrowing limit	$	2,750
Amount outstanding at period end	846
Average amount outstanding	290
Maximum amount outstanding	846
Weighted average interest rate, computed on a daily basis	0.56		%
Weighted average interest rate at period end	0.82

	Year Ended Dec. 31
(Amounts in Millions, Except Interest Rates)	2015			2014			2013
Borrowing limit	$	2,750		$	2,750		$	2,450
Amount outstanding at period end	846			1,020			759
Average amount outstanding	601			841			481
Maximum amount outstanding	1,360			1,200			1,160
Weighted average interest rate, computed on a daily basis	0.48		%	0.33		%	0.31		%
Weighted average interest rate at end of period	0.82			0.56			0.25

Schedule Of Debt To Total Capitalization Ratio

Each entity was in compliance at Dec. 31, 2015 and 2014, respectively, as evidenced by the table below:

	Debt-to-Total Capitalization Ratio
	2015		2014
Xcel Energy Inc.	57	%	56	%
NSP-Wisconsin	46		48
NSP-Minnesota	48		48
SPS	46		47
PSCo	45		47

Credit Facilities

At Dec. 31, 2015, 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	$	584	$	416
PSCo	700		18		682
NSP-Minnesota	500		241		259
SPS	400		22		378
NSP-Wisconsin	150		10		140
Total	$	2,750	$	875	$	1,875

^(a)  These credit facilities mature in October 2019.

^(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)
2016	$	657
2017	638
2018	1,206
2019	406
2020	1,257