Accumulated Other Comprehensive Income (Loss), Net of Tax (Tables)

9 Months Ended

Sep. 30, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income by Component

PSEG	Three Months Ended September 30, 2020
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of June 30, 2020	$	(15)	$	(493)	$	53	$	(455)
Other Comprehensive Income before Reclassifications	—		—		3		3
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	4		3		(7)		—
Net Current Period Other Comprehensive Income (Loss)	4		3		(4)		3
Balance as of September 30, 2020	$	(11)	$	(490)	$	49	$	(452)
PSEG	Three Months Ended September 30, 2019
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of June 30, 2019	$	(18)	$	(437)	$	23	$	(432)
Other Comprehensive Income (Loss) before Reclassifications	—		(20)		13		(7)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	1		3		(3)		1
Net Current Period Other Comprehensive Income (Loss)	1		(17)		10		(6)
Balance as of September 30, 2019	$	(17)	$	(454)	$	33	$	(438)
PSEG	Nine Months Ended September 30, 2020
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of December 31, 2019	$	(15)	$	(499)	$	25	$	(489)
Other Comprehensive Income (Loss) before Reclassifications	(4)		—		47		43
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	8		9		(23)		(6)
Net Current Period Other Comprehensive Income (Loss)	4		9		24		37
Balance as of September 30, 2020	$	(11)	$	(490)	$	49	$	(452)
PSEG	Nine Months Ended September 30, 2019
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of December 31, 2018	$	(1)	$	(360)	$	(16)	$	(377)
Cumulative Effect Adjustment to Reclassify Stranded Tax Effects Resulting in the Change in the Federal Corporate Income Tax to Retained Earnings	—		(81)		—		(81)
Current Period Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss) before Reclassifications	(17)		(23)		54		14
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	1		10		(5)		6
Net Current Period Other Comprehensive Income (Loss)	(16)		(13)		49		20
Net Change in Accumulated Other Comprehensive Income (Loss)	(16)		(94)		49		(61)
Balance as of September 30, 2019	$	(17)	$	(454)	$	33	$	(438)

PSEG Power	Three Months Ended September 30, 2020
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of June 30, 2020	$	—	$	(415)	$	41	$	(374)
Other Comprehensive Income before Reclassifications	—		—		3		3
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		2		(5)		(3)
Net Current Period Other Comprehensive Income (Loss)	—		2		(2)		—
Balance as of September 30, 2020	$	—	$	(413)	$	39	$	(374)
PSEG Power	Three Months Ended September 30, 2019
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of June 30, 2019	$	—	$	(372)	$	18	$	(354)
Other Comprehensive Income before Reclassifications	—		(14)		10		(4)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		2		(3)		(1)
Net Current Period Other Comprehensive Income (Loss)	—		(12)		7		(5)
Balance as of September 30, 2019	$	—	$	(384)	$	25	$	(359)
PSEG Power	Nine Months Ended September 30, 2020
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of December 31, 2019	$	—	$	(420)	$	19	$	(401)
Other Comprehensive Income before Reclassifications	—		—		38		38
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		7		(18)		(11)
Net Current Period Other Comprehensive Income (Loss)	—		7		20		27
Balance as of September 30, 2020	$	—	$	(413)	$	39	$	(374)
PSEG Power	Nine Months Ended September 30, 2019
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans		Available-for-Sale Securities		Total
	Millions
Balance as of December 31, 2018	$	—	$	(306)	$	(13)	$	(319)
Cumulative Effect Adjustment to Reclassify Stranded Tax Effects Resulting in the Change in the Federal Corporate Income Tax to Retained Earnings	—		(69)		—		(69)
Current Period Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss) before Reclassifications	—		(17)		42		25
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		8		(4)		4
Net Current Period Other Comprehensive Income (Loss)	—		(9)		38		29
Net Change in Accumulated Other Comprehensive Income (Loss)	—		(78)		38		(40)
Balance as of September 30, 2019	$	—	$	(384)	$	25	$	(359)

Reclassifications out of Accumulated Other Comprehensive Income

PSEG		Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
		Three Months Ended						Nine Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations	September 30, 2020						September 30, 2020
		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount
		Millions
Cash Flow Hedges
Interest Rate Swaps	Interest Expense	$	(5)	$	1	$	(4)	$	(11)	$	3	$	(8)
Total Cash Flow Hedges		(5)		1		(4)		(11)		3		(8)
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	Non-Operating Pension and OPEB Credits (Costs)	6		(2)		4		18		(5)		13
Amortization of Actuarial Loss	Non-Operating Pension and OPEB Credits (Costs)	(10)		3		(7)		(30)		8		(22)
Total Pension and OPEB Plans		(4)		1		(3)		(12)		3		(9)
Available-for-Sale Debt Securities
Realized Gains (Losses) and Impairments	Net Gains (Losses) on Trust Investments	11		(4)		7		37		(14)		23
Total Available-for-Sale Debt Securities		11		(4)		7		37		(14)		23
Total		$	2	$	(2)	$	—	$	14	$	(8)	$	6

PSEG		Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
		Three Months Ended						Nine Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations	September 30, 2019						September 30, 2019
		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount
		Millions
Cash Flow Hedges
Interest Rate Swaps	Interest Expense	$	(1)	$	—	$	(1)	$	(2)	$	1	$	(1)
Total Cash Flow Hedges		(1)		—		(1)		(2)		1		(1)
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	Non-Operating Pension and OPEB Credits (Costs)	7		(2)		5		20		(6)		14
Amortization of Actuarial Loss	Non-Operating Pension and OPEB Credits (Costs)	(10)		2		(8)		(33)		9		(24)
Total Pension and OPEB Plans		(3)		—		(3)		(13)		3		(10)
Available-for-Sale Debt Securities
Realized Gains (Losses)	Net Gains (Losses) on Trust Investments	6		(3)		3		9		(4)		5
Total Available-for-Sale Debt Securities		6		(3)		3		9		(4)		5
Total		$	2	$	(3)	$	(1)	$	(6)	$	—	$	(6)

PSEG Power		Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
		Three Months Ended						Nine Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations	September 30, 2020						September 30, 2020
		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	Non-Operating Pension and OPEB Credits (Costs)	$	5	$	(2)	$	3	$	16	$	(5)	$	11
Amortization of Actuarial Loss	Non-Operating Pension and OPEB Credits (Costs)	(8)		3		(5)		(25)		7		(18)
Total Pension and OPEB Plans		(3)		1		(2)		(9)		2		(7)
Available-for-Sale Debt Securities
Realized Gains (Losses) and Impairments	Net Gains (Losses) on Trust Investments	9		(4)		5		30		(12)		18
Total Available-for-Sale Debt Securities		9		(4)		5		30		(12)		18
Total		$	6	$	(3)	$	3	$	21	$	(10)	$	11

PSEG Power		Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
		Three Months Ended						Nine Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations	September 30, 2019						September 30, 2019
		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount		Pre-Tax Amount		Tax (Expense) Benefit		After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	Non-Operating Pension and OPEB Credits (Costs)	$	6	$	(2)	$	4	$	17	$	(5)	$	12
Amortization of Actuarial Loss	Non-Operating Pension and OPEB Credits (Costs)	(9)		3		(6)		(28)		8		(20)
Total Pension and OPEB Plans		(3)		1		(2)		(11)		3		(8)
Available-for-Sale Debt Securities
Realized Gains (Losses)	Net Gains (Losses) on Trust Investments	5		(2)		3		7		(3)		4
Total Available-for-Sale Debt Securities		5		(2)		3		7		(3)		4
Total		$	2	$	(1)	$	1	$	(4)	$	—	$	(4)