Borrowings and Other Financing Instruments (Tables)

3 Months Ended

Mar. 31, 2019

Commercial paper outstanding for PSCo was as follows:



(Amounts in Millions, Except Interest Rates)	Three Months Ended March 31, 2019			Year Ended Dec. 31, 2018
Borrowing limit	$	700		$	700
Amount outstanding at period end	239			307
Average amount outstanding	245			55
Maximum amount outstanding	414			309
Weighted average interest rate, computed on a daily basis	2.78		%	2.28		%
Weighted average interest rate at period end	2.68			2.95

At March 31, 2019, PSCo had the following committed credit facility available (in millions of dollars):

^(a) This credit facility expires in June 2021.

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

Money pool borrowings for PSCo were as follows:



(Amounts in Millions, Except Interest Rates)	Three Months Ended March 31, 2019		Year Ended Dec. 31, 2018
Borrowing limit	$	250	$	250
Amount outstanding at period end	—		—
Average amount outstanding	—		25
Maximum amount outstanding	—		156
Weighted average interest rate, computed on a daily basis	N/A		1.93		%
Weighted average interest rate at period end	N/A		N/A