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Changes in Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2016
Changes in Accumulated Other Comprehensive Income [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
three months ended March 31, 2016 and 2015:
Three Months Ended March 31, 2016
Gains 
and
(Losses) 
on Cash Flow Hedges
 
Unrealized
Gains and
(Losses) on
Marketable
Securities
 
Pension and
Non-Pension
Postretirement
Benefit Plan
Items
 
Foreign
Currency
Items
 
AOCI of
Equity
Investments
 
Total
Exelon(a)
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
(19
)
 
$
3

 
$
(2,565
)
 
$
(40
)
 
$
(3
)
 
$
(2,624
)
OCI before reclassifications
(10
)
 
(1
)
 
67

 
6

 
(3
)
 
59

Amounts reclassified from AOCI(b)
3

 
—

 
(34
)
 
—

 
—

 
(31
)
Net current-period OCI
(7
)
 
(1
)
 
33

 
6

 
(3
)
 
28

Ending balance
$
(26
)
 
$
2

 
$
(2,532
)
 
$
(34
)
 
$
(6
)
 
$
(2,596
)
Generation(a)
 
 
 
 
 
 
 
 
 
 


Beginning balance
$
(21
)
 
$
1

 
$
—

 
$
(40
)
 
$
(3
)
 
$
(63
)
OCI before reclassifications
(8
)
 
—

 
—

 
6

 
(2
)
 
(4
)
Amounts reclassified from AOCI(b)
3

 
—

 
—

 
—

 
—

 
3

Net current-period OCI
(5
)
 
—

 
—

 
6

 
(2
)
 
(1
)
Ending balance
$
(26
)
 
$
1

 
$
—

 
$
(34
)
 
$
(5
)
 
$
(64
)
PECO(a)
 
 
 
 
 
 
 
 
 
 


Beginning balance
$
—

 
$
1

 
$
—

 
$
—

 
$
—

 
$
1

OCI before reclassifications
—

 
—

 
—

 
—

 
—

 
—

Amounts reclassified from AOCI(b)
—

 
—

 
—

 
—

 
—

 
—

Net current-period OCI
—

 
—

 
—

 
—

 
—

 
—

Ending balance
$
—

 
$
1

 
$
—

 
$
—

 
$
—

 
$
1

PHI Predecessor(a)
 
 
 
 
 
 
 
 
 
 
 
Beginning balance January 1, 2016
$
(8
)
 
$
—

 
$
(28
)
 
$
—

 
$
—

 
$
(36
)
OCI before reclassifications
—

 
—

 
2

 
—

 
—

 
2

Amounts reclassified from AOCI(b)
—

 
—

 
(1
)
 
—

 
—

 
(1
)
Net current-period OCI
—

 
—

 
1

 
—

 
—

 
1

Ending balance March 23, 2016(c)
$
(8
)
 
$
—

 
$
(27
)
 
$
—

 
$
—

 
$
(35
)


Three Months Ended March 31, 2015
Gains and
(Losses) on Hedging Activity
 
Unrealized
Gains and
(Losses) on
Marketable
Securities
 
Pension and
Non-Pension
Postretirement
Benefit Plan
Items
 
Foreign
Currency
Items
 
AOCI of
Equity
Investments
 
Total
Exelon(a)
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
(28
)
 
$
3

 
$
(2,640
)
 
$
(19
)
 
$
—

 
$
(2,684
)
OCI before reclassifications
(11
)
 
—

 
(26
)
 
(12
)
 
—

 
(49
)
Amounts reclassified from AOCI(b)
17

 
—

 
43

 
—

 
—

 
60

Net current-period OCI
6

 
—

 
17

 
(12
)
 
—

 
11

Ending balance
$
(22
)
 
$
3

 
$
(2,623
)
 
$
(31
)
 
$
—

 
$
(2,673
)
Generation(a)
 
 
 
 
 
 
 
 
 
 

Beginning balance
$
(18
)
 
$
1

 
$
—

 
$
(19
)
 
$
—

 
$
(36
)
OCI before reclassifications
(6
)
 
—

 
—

 
(12
)
 
—

 
(18
)
Amounts reclassified from AOCI(b)
1

 
—

 
—

 
—

 
—

 
1

Net current-period OCI
(5
)
 
—

 
—

 
(12
)
 
—

 
(17
)
Ending balance
$
(23
)
 
$
1

 
$
—

 
$
(31
)
 
$
—

 
$
(53
)
PECO(a)
 
 
 
 
 
 
 
 
 
 


Beginning balance
$
—

 
$
1

 
$
—

 
$
—

 
$
—

 
$
1

OCI before reclassifications
—

 
—

 
—

 
—

 
—

 
—

Amounts reclassified from AOCI(b)
—

 
—

 
—

 
—

 
—

 
—

Net current-period OCI
—

 
—

 
—

 
—

 
—

 
—

Ending balance
$
—

 
$
1

 
$
—

 
$
—

 
$
—

 
$
1

PHI Predecessor(a)
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
(9
)
 
$
—

 
$
(37
)
 
$
—

 
$
—

 
$
(46
)
OCI before reclassifications
—

 
—

 
—

 
—

 
—

 
—

Amounts reclassified from AOCI(b)
—

 
—

 
1

 
—

 
—

 
1

Net current-period OCI
—

 
—

 
1

 
—

 
—

 
1

Ending balance
$
(9
)
 
$
—

 
$
(36
)
 
$
—

 
$
—

 
$
(45
)
 ________
(a)
All amounts are net of tax. Amounts in parenthesis represent a decrease in AOCI.
(b)
See next tables for details about these reclassifications.
Reclassification out of Accumulated Other Comprehensive Income
The following tables present amounts reclassified out of AOCI to Net income for Exelon, Generation and PHI during the three months ended March 31, 2016 and 2015.

Three Months Ended March 31, 2016
 
 
 
 
 
 
 
Details about AOCI components
 
Items reclassified out of AOCI(a)
 
Affected line item in the Statement of Operations and Comprehensive Income
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Predecessor
 
 
 
 
Three Months Ended March 31, 2016
 
Three Months Ended March 31, 2016
 
January 1, 2016 to March 23, 2016
 
 
 
 
Exelon
 
Generation
 
PHI
 
 
Gains and (losses) on cash flow hedges
 
 
 
 
 
 
 
 
Other cash flow hedges
 
$
(5
)
 
$
(5
)
 
$
—

 
Interest expense
Total before tax
 
(5
)

(5
)

—

 
 
Tax expense
 
2

 
2

 
—

 
 
Net of tax
 
$
(3
)
 
$
(3
)
 
$
—

 
Comprehensive income
 
 
 
 
 
 
 
 
 
Amortization of pension and other postretirement benefit plan items
 
 
 
 
 
 
 
 
Prior service costs(b)
 
$
(20
)
 
$
—

 
$
—

 
 
Actuarial losses(b)
 
76

 
—

 
1

 
 
Total before tax
 
56

 
—

 
1

 
 
Tax benefit
 
(22
)
 
—

 
—

 
 
Net of tax
 
$
34

 
$
—

 
$
1

 
 
 
 
 
 
 
 
 
 
 
Total Reclassifications
 
$
31

 
$
(3
)
 
$
1

 
Comprehensive income
Three Months Ended March 31, 2015
 
 
 
 
 
 
 
 
 
Details about AOCI components
 
Items reclassified out of AOCI(a)
 
Affected line item in the Statement of Operations and Comprehensive Income
 
 
 
 
 
 
Predecessor
 
 
 
 
Exelon
 
Generation
 
PHI
 
 
Gains and (losses) on cash flow hedges
 
 
 
 
 
 
 
 
Terminated interest rate swaps
 
$
(26
)
 
$
—

 
$
—

 
Other, net
Energy related hedges
 
2

 
2

 
—

 
Operating revenues
Other cash flow hedges
 
(3
)
 
(3
)
 
—

 
Interest expense
Total before tax
 
(27
)

(1
)

—

 
 
Tax benefit
 
10

 
—

 
—

 
 
Net of tax
 
$
(17
)
 
$
(1
)
 
$
—

 
Comprehensive income
 
 
 
 
 
 
 
 
 
Amortization of pension and other postretirement benefit plan items
 
 
 
 
 
 
 
 
Prior service costs(b)
 
$
19

 
$
—

 
$
—

 
 
Actuarial losses(b)
 
(90
)
 
—

 
(2
)
 
 
Total before tax
 
(71
)
 
—

 
(2
)
 
 
Tax benefit
 
28

 
—

 
1

 
 
Net of tax
 
$
(43
)
 
$
—

 
$
(1
)
 
 
 
 
 
 
 
 
 
 
 
Total Reclassifications
 
$
(60
)
 
$
(1
)
 
$
(1
)
 
Comprehensive income
_______
(a)
Amounts in parenthesis represent a decrease in net income.
(b)
This AOCI component is included in the computation of net periodic pension and OPEB cost (see Note 13 — Retirement Benefits for additional details).
Schedule Of Other Comprehensive Income Loss Tax
The following table presents income tax expense (benefit) allocated to each component of other comprehensive income (loss) during the three months ended March 31, 2016 and 2015:
 
 
Three Months Ended March 31,
 
2016
 
2015
Exelon
 
 
 
Pension and non-pension postretirement benefit plans:
 
 
 
Prior service benefit reclassified to periodic benefit cost
$
7

 
$
8

Actuarial loss reclassified to periodic cost
(30
)
 
(35
)
Pension and non-pension postretirement benefit plans valuation adjustment
—

 
17

Change in unrealized gain/(loss) on cash flow hedges
3

 
(2
)
Change in unrealized loss on equity investments
2

 
—

Change in unrealized gain on marketable securities
1

 
—

Total
$
(17
)
 
$
(12
)
 
 
 
 
Generation
 
 
 
Change in unrealized gain on cash flow hedges
$
2

 
$
5

Change in unrealized loss on equity investments
2

 
—

Total
$
4

 
$
5