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

3 Months Ended

Mar. 31, 2017

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

Schedule of Changes in Accumulated Other Comprehensive Income by Component

PSEG	Other Comprehensive Income (Loss)
	Three Months Ended March 31, 2017
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans			Available-for-Sale Securities			Total
	Millions
Balance as of December 31, 2016	$	2	$	(398	)	$	133		$	(263	)
Other Comprehensive Income before Reclassifications	—		—			30			30
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		6			(15		)	(9		)
Net Current Period Other Comprehensive Income (Loss)	—		6			15			21
Balance as of March 31, 2017	$	2	$	(392	)	$	148		$	(242	)
PSEG	Other Comprehensive Income (Loss)
	Three Months Ended March 31, 2016
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans			Available-for-Sale Securities			Total
	Millions
Balance as of December 31, 2015	$	—	$	(386	)	$	91		$	(295	)
Other Comprehensive Income before Reclassifications	2		—			10			12
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		8			6			14
Net Current Period Other Comprehensive Income (Loss)	2		8			16			26
Balance as of March 31, 2016	$	2	$	(378	)	$	107		$	(269	)

Power	Other Comprehensive Income (Loss)
	Three Months Ended March 31, 2017
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans			Available-for-Sale Securities			Total
	Millions
Balance as of December 31, 2016	$	—	$	(340	)	$	129		$	(211	)
Other Comprehensive Income before Reclassifications	—		—			28			28
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		5			(9		)	(4		)
Net Current Period Other Comprehensive Income (Loss)	—		5			19			24
Balance as of March 31, 2017	$	—	$	(335	)	$	148		$	(187	)
Power	Other Comprehensive Income (Loss)
	Three Months Ended March 31, 2016
Accumulated Other Comprehensive Income (Loss)	Cash Flow Hedges		Pension and OPEB Plans			Available-for-Sale Securities			Total
	Millions
Balance as of December 31, 2015	$	—	$	(327	)	$	87		$	(240	)
Other Comprehensive Income before Reclassifications	—		—			10			10
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—		7			6			13
Net Current Period Other Comprehensive Income (Loss)	—		7			16			23
Balance as of March 31, 2016	$	—	$	(320	)	$	103		$	(217	)

Reclassifications out of Accumulated Other Comprehensive Income

PSEG			Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
			Three Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations		March 31, 2017
			Pre-Tax Amount			Tax (Expense) Benefit			After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	O&M Expense		$	2		$	(1	)	$	1
Amortization of Actuarial Loss	O&M Expense		(12		)	5			(7		)
Total Pension and OPEB Plans			(10		)	4			(6		)
Available-for-Sale Securities
Realized Gains	Other Income		36			(17		)	19
Realized Losses	Other Deductions		(7		)	3			(4		)
OTTI	OTTI		(1		)	1			—
Total Available-for-Sale Securities			28			(13		)	15
Total			$	18		$	(9	)	$	9

PSEG			Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
			Three Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations		March 31, 2016
			Pre-Tax Amount			Tax (Expense) Benefit			After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	O&M Expense		$	3		$	(1	)	$	2
Amortization of Actuarial Loss	O&M Expense		(17		)	7			(10		)
Total Pension and OPEB Plans			(14		)	6			(8		)
Available-for-Sale Securities
Realized Gains	Other Income		16			(8		)	8
Realized Losses	Other Deductions		(17		)	8			(9		)
OTTI	OTTI		(10		)	5			(5		)
Total Available-for-Sale Securities			(11		)	5			(6		)
Total			$	(25	)	$	11		$	(14	)

Power			Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
			Three Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations		March 31, 2017
			Pre-Tax Amount			Tax (Expense) Benefit			After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	O&M Expense		$	2		$	(1	)	$	1
Amortization of Actuarial Loss	O&M Expense		(11		)	5			(6		)
Total Pension and OPEB Plans			(9		)	4			(5		)
Available-for-Sale Securities
Realized Gains	Other Income		25			(13		)	12
Realized Losses	Other Deductions		(5		)	2			(3		)
OTTI	OTTI		(1		)	1			—
Total Available-for-Sale Securities			19			(10		)	9
Total			$	10		$	(6	)	$	4

Power		Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Income Statement
		Three Months Ended
Description of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	Location of Pre-Tax Amount In Statement of Operations	March 31, 2016
		Pre-Tax Amount			Tax (Expense) Benefit			After-Tax Amount
		Millions
Pension and OPEB Plans
Amortization of Prior Service (Cost) Credit	O&M Expense	3			(1		)	2
Amortization of Actuarial Loss	O&M Expense	(15		)	6			(9		)
Total Pension and OPEB Plans		(12		)	5			(7		)
Available-for-Sale Securities
Realized Gains	Other Income	15			(8		)	7
Realized Losses	Other Deductions	(16		)	8			(8		)
OTTI	OTTI	(10		)	5			(5		)
Total Available-for-Sale Securities		(11		)	5			(6		)
Total		$	(23	)	$	10		$	(13	)