Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Instrument [Line Items]

Schedule of Long-Term Debt Instruments

Long-Term Debt

The following table presents outstanding long-term debt principal amounts and due dates as of 2018 and 2017:

(Dollars in Thousands)			At December 31,
Series	Type	Due	2018			2017
Puget Sound Energy:
6.740%	Senior Secured Note1	2018	$	—		$	200,000
5.500%	Promissory Note	2020	2,412			2,412
7.150%	First Mortgage Bond	2025	15,000			15,000
7.200%	First Mortgage Bond	2025	2,000			2,000
7.020%	Senior Secured Note	2027	300,000			300,000
7.000%	Senior Secured Note	2029	100,000			100,000
3.900%	Pollution Control Bond	2031	138,460			138,460
4.000%	Pollution Control Bond	2031	23,400			23,400
5.483%	Senior Secured Note	2035	250,000			250,000
6.724%	Senior Secured Note	2036	250,000			250,000
6.274%	Senior Secured Note	2037	300,000			300,000
5.757%	Senior Secured Note	2039	350,000			350,000
5.795%	Senior Secured Note	2040	325,000			325,000
5.764%	Senior Secured Note	2040	250,000			250,000
4.434%	Senior Secured Note	2041	250,000			250,000
5.638%	Senior Secured Note	2041	300,000			300,000
4.300%	Senior Secured Note	2045	425,000			425,000
4.223%	Senior Secured Note	2048	600,000			—
4.700%	Senior Secured Note	2051	45,000			45,000
6.974%	Junior Subordinated Note	2067	—			250,000
*	Debt discount, issuance cost and other	*	(31,412		)	(26,361		)
Total PSE long-term debt			3,894,860			3,749,911
Puget Energy:
*	Fair value adjustment of PSE long-term debt	*	(182,372		)	(190,895		)
*	Revolving Credit Agreement	2022	11,900			102,600
*	Term Loan Agreement	2021	150,000			—
6.500%	Senior Secured Note	2020	450,000			450,000
6.000%	Senior Secured Note	2021	500,000			500,000
5.625%	Senior Secured Note	2022	450,000			450,000
3.650%	Senior Secured Note	2025	400,000			400,000
*	Debt discount, issuance cost and other	*	(1,897		)	(3,687		)
Total Puget Energy long-term debt			$	5,672,491		$	5,457,929

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* Not Applicable.

¹  6.74% Senior Secured Note in the amount of $200.0 million was classified on the Balance Sheet as a current maturity of long-term debt as of June 15, 2017.

Schedule of Maturities of Long-Term Debt

The principal amounts of long-term debt maturities for the next five years and thereafter are as follows:

(Dollars in Thousands)	2019		2020		2021		2022		2023		Thereafter		Total
Maturities of:
PSE	$	—	$	2,412	$	—	$	—	$	—	$	3,923,860	$	3,926,272
Puget Energy	—		450,000		650,000		461,900		—		400,000		1,961,900
Total long-term debt	$	—	$	452,412	$	650,000	$	461,900	$	—	$	4,323,860	$	5,888,172