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Fair Value Measurements
12 Months Ended
Dec. 31, 2011
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS
FAIR VALUE MEASUREMENTS
LONG-TERM DEBT AND OTHER LONG-TERM OBLIGATIONS
All borrowings with initial maturities of less than one year are defined as short-term financial instruments under GAAP and are reported on the Consolidated Balance Sheets at cost, which approximates their fair market value, in the caption “Short-term borrowings.” The following table provides the approximate fair value and related carrying amounts of long-term debt and other long-term obligations, excluding capital lease obligations and net unamortized premiums and discounts, as of December 31, 2011 and 2010:
 
 
December 31, 2011
 
December 31, 2010
 
 
Carrying Value
 
Fair Value
 
Carrying Value
 
Fair Value
 
 
(In millions)
FirstEnergy(1)
 
$
17,165

 
$
19,320

 
$
13,928

 
$
14,845

FES
 
3,675

 
3,931

 
4,279

 
4,403

OE
 
1,157

 
1,434

 
1,159

 
1,321

CEI
 
1,831

 
2,162

 
1,853

 
2,035

TE
 
600

 
741

 
600

 
653

JCP&L
 
1,777

 
2,080

 
1,810

 
1,962

Met-Ed
 
729

 
824

 
742

 
821

Penelec
 
1,120

 
1,251

 
1,120

 
1,189

(1) 
Includes debt assumed in the AE merger (see Note 2, Merger) with a carrying value and a fair value as of December 31, 2011, of $4,355 million and $4,561 million, respectively.
The fair values of long-term debt and other long-term obligations reflect the present value of the cash outflows relating to those securities based on the current call price, the yield to maturity or the yield to call, as deemed appropriate at the end of each respective period. The yields assumed were based on securities with similar characteristics offered by corporations with credit ratings similar to those of FirstEnergy and its subsidiaries listed above.
INVESTMENTS
All temporary cash investments purchased with an initial maturity of three months or less are reported as cash equivalents on the Consolidated Balance Sheets at cost, which approximates their fair market value. Investments other than cash and cash equivalents include held-to-maturity securities, available-for-sale securities and notes receivable.
FE and its subsidiaries periodically evaluate their investments for other-than-temporary impairment. They first consider their intent and ability to hold an equity investment until recovery and then consider, among other factors, the duration and the extent to which the security’s fair value has been less than cost and the near-term financial prospects of the security issuer when evaluating an investment for impairment. For debt securities, FE and its subsidiaries consider their intent to hold the security, the likelihood that they will be required to sell the security before recovery of their cost basis and the likelihood of recovery of the security’s entire amortized cost basis.
Unrealized gains applicable to the decommissioning trusts of FES, OE and TE are recognized in OCI because fluctuations in fair value will eventually impact earnings while unrealized losses are recorded to earnings. The decommissioning trusts of JCP&L, Met-Ed and Penelec are subject to regulatory accounting. Net unrealized gains and losses are recorded as regulatory assets or liabilities because the difference between investments held in the trust and the decommissioning liabilities will be recovered from or refunded to customers.
The investment policy for the NDT funds restricts or limits the trusts’ ability to hold certain types of assets including private or direct placements, warrants, securities of FirstEnergy, investments in companies owning nuclear power plants, financial derivatives, preferred stocks, securities convertible into common stock and securities of the trust funds’ custodian or managers and their parents or subsidiaries.
Available-For-Sale Securities
FES and the Utility Registrants hold debt and equity securities within their NDT, nuclear fuel disposal trusts and NUG trusts. These trust investments are considered available-for-sale securities at fair market value. FES and the Utility Registrants have no securities held for trading purposes.
The following table summarizes the amortized cost basis, unrealized gains and losses and fair values of investments held in NDT, nuclear fuel disposal trusts and NUG trusts as of December 31, 2011 and 2010:
 
 
December 31, 2011(1)
 
December 31, 2010(2)
 
 
Cost Basis
 
Unrealized Gains
 
Unrealized Losses
 
Fair Value
 
Cost Basis
 
Unrealized Gains
 
Unrealized Losses
 
Fair Value
 
 
(In millions)
Debt securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FirstEnergy
 
$
1,980

 
$
25

 
$

 
$
2,005

 
$
1,699

 
$
31

 
$

 
$
1,730

FES
 
1,012

 
13

 

 
1,025

 
980

 
13

 

 
993

OE
 
134

 

 

 
134

 
123

 
1

 

 
124

TE
 
53

 
1

 

 
54

 
42

 

 

 
42

JCP&L
 
356

 
7

 

 
363

 
281

 
9

 

 
290

Met-Ed
 
232

 
2

 

 
234

 
127

 
4

 

 
131

Penelec
 
193

 
2

 

 
195

 
145

 
4

 

 
149

Equity securities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FirstEnergy
 
$
222

 
$
36

 
$

 
$
258

 
$
268

 
$
69

 
$

 
$
337

FES
 
104

 
20

 

 
124

 

 

 

 

TE
 
22

 
5

 

 
27

 

 

 

 

JCP&L
 
27

 
3

 

 
30

 
80

 
17

 

 
97

Met-Ed
 
46

 
5

 

 
51

 
125

 
35

 

 
160

Penelec
 
23

 
3

 

 
26

 
63

 
16

 

 
79

(1) 
Excludes short-term cash investments: FirstEnergy — $164 million; FES — $74 million; OE — $2 million; TE — $2 million; JCP&L — $19 million; Met-Ed — $25 million and Penelec — $41 million.
(2) 
Excludes short-term cash investments: FirstEnergy — $193 million; FES — $153 million; OE — $3 million; TE — $34 million; JCP&L — $3 million; Met-Ed — $(3) million and Penelec — $4 million.
Proceeds from the sale of investments in available-for-sale securities, realized gains and losses on those sales net of adjustments recorded to earnings and interest and dividend income for the three years ended December 31, 2011, 2010 and 2009 were as follows:
December 31, 2011
 
Sales Proceeds
 
Realized Gains
 
Realized Losses
 
Interest and
Dividend Income
 
 
(In millions)
FirstEnergy
 
$
4,207

 
$
229

 
$
(90
)
 
$
82

FES
 
1,843

 
80

 
(46
)
 
47

OE
 
154

 
6

 

 
3

TE
 
120

 
5

 
(5
)
 
2

JCP&L
 
779

 
39

 
(11
)
 
15

Met-Ed
 
860

 
64

 
(16
)
 
8

Penelec
 
451

 
35

 
(12
)
 
6

December 31, 2010
 
Sales Proceeds
 
Realized Gains
 
Realized Losses
 
Interest and Dividend Income
 
 
(In millions)
FirstEnergy
 
$
3,172

 
$
126

 
$
(107
)
 
$
79

FES
 
1,927

 
92

 
(75
)
 
47

OE
 
83

 
2

 

 
3

TE
 
126

 
3

 
(1
)
 
2

JCP&L
 
411

 
10

 
(10
)
 
14

Met-Ed
 
460

 
13

 
(14
)
 
7

Penelec
 
165

 
6

 
(7
)
 
6

December 31, 2009
 
Sales Proceeds
 
Realized Gains
 
Realized Losses
 
Interest and Dividend Income
 
 
(In millions)
FirstEnergy
 
$
2,229

 
$
226

 
$
(155
)
 
$
60

FES
 
1,379

 
199

 
(117
)
 
27

OE
 
131

 
11

 
(4
)
 
4

TE
 
169

 
7

 
(1
)
 
2

JCP&L
 
397

 
6

 
(12
)
 
14

Met-Ed
 
68

 
2

 
(13
)
 
7

Penelec
 
84

 
1

 
(8
)
 
6


Held-To-Maturity Securities
The following table provides the amortized cost basis, unrealized gains and approximate fair values of investments in held-to-maturity securities as of December 31, 2011 and 2010:
 
 
December 31, 2011
 
December 31, 2010
 
 
Cost Basis
 
Unrealized Gains
 
Fair Value
 
Cost Basis
 
Unrealized Gains
 
Fair Value
 
 
(In millions)
Debt Securities
 
 
 
 
 
 
 
 
 
 
 
 
FirstEnergy
 
$
402

 
$
50

 
$
452

 
$
476

 
$
91

 
$
567

OE
 
163

 
21

 
184

 
190

 
51

 
241

CEI
 
287

 
28

 
315

 
340

 
41

 
381


Investments in emission allowances, employee benefit trusts and cost and equity method investments totaling $693 million as of December 31, 2011, and $259 million as of December 31, 2010, are excluded from the amounts reported above.
Notes Receivable
The table below provides the approximate fair value and related carrying amounts of notes receivable as of December 31, 2011 and 2010. The fair value of notes receivable represents the present value of the cash inflows based on the yield to maturity. The yields assumed were based on financial instruments with similar characteristics and terms. The maturity date of notes receivable due from affiliated companies is 2016.
 
 
December 31, 2011
 
December 31, 2010
 
 
Carrying Value
 
Fair Value
 
Carrying Value
 
Fair Value
 
 
(In millions)
FirstEnergy
 
$

 
$

 
$
7

 
$
8

TE(1)
 
81

 
92

 
104

 
118

(1) 
Represents TE's investment in the Shippingport Trust notes (see Note 6, Leases), which is eliminated during consolidation.
RECURRING FAIR VALUE MEASUREMENTS
Authoritative accounting guidance establishes a fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy gives the highest priority to Level 1 measurements and the lowest priority to Level 3 measurements. The three levels of the fair value hierarchy are as follows:
Level 1
 
– Quoted prices for identical instruments in active markets.
 
 
 
Level 2
 
– Quoted prices for similar instruments in active markets;
 
 
– quoted prices for identical or similar instruments in markets that are not active and
 
 
– model-derived valuations for which all significant inputs are observable market data.
 
 
 
 
 
Models are primarily industry-standard models that consider various assumptions, including quoted forward prices for commodities, time value, volatility factors and current market and contractual prices for the underlying instruments, as well as other relevant economic measures.
 
 
 
Level 3
 
– Valuation inputs are unobservable and significant to the fair value measurement.
 
 
 
 
 
FirstEnergy develops its view of the future market price through a combination of market observation and assessment (generally for the short term) and fundamental modeling (generally for the long term). FirstEnergy utilizes market data and assumptions that market participants would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market corroborated or generally unobservable. FirstEnergy primarily applies the market approach for recurring fair value measurements using the best information available. Accordingly, FirstEnergy maximizes the use of observable inputs and minimizes the use of unobservable inputs.
The determination of the fair value measures takes into consideration various factors. These factors include, but are not limited to, nonperformance risk, including counterparty credit risk and the impact of credit enhancements (such as cash deposits, LOCs and priority interests). The impact of these forms of risk were not significant in the fair value measurements.
The following tables set forth financial assets and liabilities that are accounted for at fair value by level within the fair value hierarchy. There were no significant transfers between levels during 2011 and 2010.
FIRSTENERGY
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
1,544

 
$

 
$
1,544

 
$

 
$
597

 
$

 
$
597

Derivative assets — commodity contracts
 

 
264

 

 
264

 

 
250

 

 
250

Derivative assets — FTRs
 

 

 
1

 
1

 

 

 

 

Derivative assets — NUG contracts(1)
 

 

 
56

 
56

 

 

 
122

 
122

Equity securities(2)
 
259

 

 

 
259

 
338

 

 

 
338

Foreign government debt securities
 

 
3

 

 
3

 

 
149

 

 
149

U.S. government debt securities
 

 
148

 

 
148

 

 
595

 

 
595

U.S. state debt securities
 

 
314

 

 
314

 

 
379

 

 
379

Other(3)
 

 
225

 

 
225

 

 
219

 

 
219

Total assets
 
$
259

 
$
2,498

 
$
57

 
$
2,814

 
$
338

 
$
2,189

 
$
122

 
$
2,649

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative liabilities — commodity contracts
 
$

 
$
(247
)
 
$

 
$
(247
)
 
$

 
$
(348
)
 
$

 
$
(348
)
Derivative liabilities — FTRs
 

 

 
(23
)
 
(23
)
 

 

 

 

Derivative liabilities — NUG contracts(1)
 

 

 
(349
)
 
(349
)
 

 

 
(466
)
 
(466
)
Total liabilities
 
$

 
$
(247
)
 
$
(372
)
 
$
(619
)
 
$

 
$
(348
)
 
$
(466
)
 
$
(814
)
Net assets (liabilities)(4)
 
$
259

 
$
2,251

 
$
(315
)
 
$
2,195

 
$
338

 
$
1,841

 
$
(344
)
 
$
1,835

(1) 
NUG contracts are generally subject to regulatory accounting and do not impact earnings.
(2) 
NDT funds hold equity portfolios whose performance is benchmarked against the Alerian MLP Index.
(3) 
Primarily consists of short-term cash investments.
(4) 
Excludes $(52) million and $(7) million as of December 31, 2011 and 2010, respectively, of receivables, payables, taxes and accrued income associated with financial instruments reflected within the fair value table.
Rollforward of Level 3 Measurements
The following table provides a reconciliation of changes in the fair value of NUG contracts held by the Utilities and FTRs held by FirstEnergy and classified as Level 3 in the fair value hierarchy for the years ending December 31, 2011 and 2010:
 
 
Derivative Assets(1)
 
Derivative Liabilities(1)
 
Net(1)
 
 
(In millions)
December 31, 2009 Balance
 
$
200

 
$
(643
)
 
$
(443
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(71
)
 
(110
)
 
(181
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(7
)
 
287

 
280

Transfers in (out) of Level 3
 

 

 

December 31, 2010 Balance
 
$
122

 
$
(466
)
 
$
(344
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(55
)
 
(173
)
 
(228
)
Purchases
 
13

 
(4
)
 
9

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(23
)
 
283

 
260

Transfers in (out) of Level 3
 

 
(12
)
 
(12
)
December 31, 2011 Balance
 
$
57

 
$
(372
)
 
$
(315
)
(1) 
Changes in the fair value of NUG contracts are generally subject to regulatory accounting and do not impact earnings.
FES
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
1,010

 
$

 
$
1,010

 
$

 
$
528

 
$

 
$
528

Derivative assets — commodity contracts
 

 
248

 

 
248

 

 
241

 

 
241

Derivative assets — FTRs
 

 

 
1

 
1

 

 

 

 

Equity securities(1)
 
124

 

 

 
124

 

 

 

 

Foreign government debt securities
 

 
3

 

 
3

 

 
147

 

 
147

U.S. government debt securities
 

 
7

 

 
7

 

 
308

 

 
308

U.S. state debt securities
 

 
5

 

 
5

 

 
6

 

 
6

Other(2)
 

 
132

 

 
132

 

 
148

 

 
148

Total assets
 
$
124

 
$
1,405

 
$
1

 
$
1,530

 
$

 
$
1,378

 
$

 
$
1,378

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative liabilities — commodity contracts
 
$

 
$
(234
)
 
$

 
$
(234
)
 
$

 
$
(348
)
 
$

 
$
(348
)
Derivative liabilities — FTRs
 

 

 
(7
)
 
(7
)
 

 

 

 

Total liabilities
 
$

 
$
(234
)
 
$
(7
)
 
$
(241
)
 
$

 
$
(348
)
 
$

 
$
(348
)
Net assets (liabilities)(3)
 
$
124

 
$
1,171

 
$
(6
)
 
$
1,289

 
$

 
$
1,030

 
$

 
$
1,030

(1) 
NDT funds hold equity portfolios whose performance of which is benchmarked against the Alerian MLP Index.
(2) 
Primarily consists of short-term cash investments.
(3) 
Excludes $(58) million and $7 million as of December 31, 2011 and 2010, respectively, of receivables, payables, taxes and accrued income associated with the financial instruments reflected within the fair value table.
Rollforward of Level 3 Measurements
The following table provides a reconciliation of changes in the fair value of FTRs held by FES and classified as Level 3 in the fair value hierarchy for the years ending December 31, 2011 and 2010:
 
 
Derivative Asset FTRs
 
Derivative Liability FTRs
 
Net FTRs
 
 
(In millions)
December 31, 2010 Balance
 
$

 
$

 
$

Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
4

 
(8
)
 
(4
)
Purchases
 
2

 
(1
)
 
1

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(5
)
 
2

 
(3
)
Transfers in (out) of Level 3
 

 

 

December 31, 2011 Balance
 
$
1

 
$
(7
)
 
$
(6
)
OE
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
3

 
$

 
$
3

 
$

 
$

 
$

 
$

U.S. government debt securities
 

 
132

 

 
132

 

 
124

 

 
124

Other(1)
 

 
2

 

 
2

 

 
2

 

 
2

Total assets(2)
 
$

 
$
137

 
$

 
$
137

 
$

 
$
126

 
$

 
$
126

(1) 
Primarily consists of short-term cash investments.
(2) 
Excludes $1 million as of December 31, 2011 and 2010 of receivables, payables, taxes and accrued income associated with the financial instruments reflected within the fair value table.
TE
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
53

 
$

 
$
53

 
$

 
$
7

 
$

 
$
7

Equity securities(1)
 
27

 

 

 
27

 

 

 

 

U.S. government debt securities
 

 

 

 

 

 
33

 

 
33

U.S. state debt securities
 

 

 

 

 

 
1

 

 
1

Other(2)
 

 
3

 

 
3

 

 
35

 

 
35

Total assets
 
$
27

 
$
56

 
$

 
$
83

 
$

 
$
76

 
$

 
$
76

(1) 
NDT funds hold equity portfolios whose performance is benchmarked against the Alerian MLP Index.
(2) 
Primarily consists of short-term cash investments.
JCP&L
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
144

 
$

 
$
144

 
$

 
$
23

 
$

 
$
23

Derivative assets — commodity contracts
 

 

 

 

 

 
2

 

 
2

Derivative assets — NUG contracts(1)
 

 

 
4

 
4

 

 

 
6

 
6

Equity securities(2)
 
30

 

 

 
30

 
96

 

 

 
96

U.S. government debt securities
 

 
2

 

 
2

 

 
33

 

 
33

U.S. state debt securities
 

 
219

 

 
219

 

 
236

 

 
236

Other(3)
 

 
15

 

 
15

 

 
4

 

 
4

Total assets
 
$
30

 
$
380

 
$
4

 
$
414

 
$
96

 
$
298

 
$
6

 
$
400

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative liabilities — NUG contracts(1)
 
$

 
$

 
$
(147
)
 
$
(147
)
 
$

 
$

 
$
(233
)
 
$
(233
)
Total liabilities
 
$

 
$

 
$
(147
)
 
$
(147
)
 
$

 
$

 
$
(233
)
 
$
(233
)
Net assets (liabilities)(4)
 
$
30

 
$
380

 
$
(143
)
 
$
267

 
$
96

 
$
298

 
$
(227
)
 
$
167

(1) 
NUG contracts are subject to regulatory accounting and do not impact earnings.
(2) 
NDT funds hold equity portfolios whose performance is benchmarked against the Alerian MLP Index.
(3) 
Primarily consists of short-term cash investments.
(4) 
Excludes $2 million and $(3) million as of December 31, 2011 and December 31, 2010 of receivables, payables, taxes and accrued income associated with the financial instruments reflected within the fair value table.
Rollforward of Level 3 Measurements
The following table provides a reconciliation of changes in the fair value of NUG contracts held by JCP&L and classified as Level 3 in the fair value hierarchy for the years ending December 31, 2011 and 2010:
 
 
Derivative Asset NUG Contracts(1)
 
Derivative Liability NUG Contracts(1)
 
Net NUG Contracts(1)
 
 
(In millions)
December 31, 2009 Balance
 
$
8

 
$
(399
)
 
$
(391
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(1
)
 
36

 
35

Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(1
)
 
130

 
129

Transfers in (out) of Level 3
 

 

 

December 31, 2010 Balance
 
$
6

 
$
(233
)
 
$
(227
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(2
)
 
(11
)
 
(13
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 

 
97

 
97

Transfers in (out) of Level 3
 

 

 

December 31, 2011 Balance
 
$
4

 
$
(147
)
 
$
(143
)
(1) 
Changes in the fair value of NUG contracts are subject to regulatory accounting and do not impact earnings.
MET-ED
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
229

 
$

 
$
229

 
$

 
$
32

 
$

 
$
32

Derivative assets — commodity contracts
 

 

 

 

 

 
5

 

 
5

Derivative assets — NUG contracts(1)
 

 

 
49

 
49

 

 

 
112

 
112

Equity securities(2)
 
51

 

 

 
51

 
160

 

 

 
160

Foreign government debt securities
 

 

 

 

 

 
1

 

 
1

U.S. government debt securities
 

 
5

 

 
5

 

 
88

 

 
88

U.S. state debt securities
 

 

 

 

 

 
2

 

 
2

Other(3)
 

 
23

 

 
23

 

 
14

 

 
14

Total assets
 
$
51

 
$
257

 
$
49

 
$
357

 
$
160

 
$
142

 
$
112

 
$
414

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative liabilities — NUG contracts(1)
 
$

 
$

 
$
(79
)
 
$
(79
)
 
$

 
$

 
$
(116
)
 
$
(116
)
Total liabilities
 
$

 
$

 
$
(79
)
 
$
(79
)
 
$

 
$

 
$
(116
)
 
$
(116
)
Net assets (liabilities)(4)
 
$
51

 
$
257

 
$
(30
)
 
$
278

 
$
160

 
$
142

 
$
(4
)
 
$
298

(1) 
NUG contracts are subject to regulatory accounting and do not impact earnings.
(2) 
NDT funds hold equity portfolios whose performance is benchmarked against the Alerian MLP Index.
(3) 
Primarily consists of short-term cash investments.
(4) 
Excludes $2 million and $(9) million as of December 31, 2011 and 2010, respectively, of receivables, payables, taxes and accrued income associated with the financial instruments reflected within the fair value table.
Rollforward of Level 3 Measurements
The following table provides a reconciliation of changes in the fair value of NUG contracts held by Met-Ed and classified as Level 3 in the fair value hierarchy for the years ending December 31, 2011 and 2010:
 
 
Derivative Asset NUG Contracts(1)
 
Derivative Liability NUG Contracts(1)
 
Net
NUG Contracts(1)
 
 
(In millions)
December 31, 2009 Balance
 
$
176

 
$
(143
)
 
$
33

Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(59
)
 
(38
)
 
(97
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(5
)
 
65

 
60

Transfers in (out) of Level 3
 

 

 

December 31, 2010 Balance
 
$
112

 
$
(116
)
 
$
(4
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(57
)
 
(31
)
 
(88
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(6
)
 
68

 
62

Transfers in (out) of Level 3
 

 

 

December 31, 2011 Balance
 
$
49

 
$
(79
)
 
$
(30
)
(1) 
Changes in the fair value of NUG contracts are subject to regulatory accounting and do not impact earnings.
 
 
December 31, 2011
 
December 31, 2010
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
(In millions)
Corporate debt securities
 
$

 
$
104

 
$

 
$
104

 
$

 
$
8

 
$

 
$
8

Derivative assets — commodity contracts
 

 

 

 

 

 
2

 

 
2

Derivative assets — NUG contracts(1)
 

 

 
3

 
3

 

 

 
4

 
4

Equity securities(2)
 
26

 

 

 
26

 
81

 

 

 
81

U.S. government debt securities
 

 
2

 

 
2

 

 
9

 

 
9

U.S. state debt securities
 

 
90

 

 
90

 

 
133

 

 
133

Other(3)
 

 
39

 

 
39

 

 
5

 

 
5

Total assets
 
$
26

 
$
235

 
$
3

 
$
264

 
$
81

 
$
157

 
$
4

 
$
242

Liabilities
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Derivative liabilities — NUG contracts(1)
 
$

 
$

 
$
(123
)
 
$
(123
)
 
$

 
$

 
$
(117
)
 
$
(117
)
Total liabilities
 
$

 
$

 
$
(123
)
 
$
(123
)
 
$

 
$

 
$
(117
)
 
$
(117
)
Net assets (liabilities)(4)
 
$
26

 
$
235

 
$
(120
)
 
$
141

 
$
81

 
$
157

 
$
(113
)
 
$
125

(1) 
NUG contracts are subject to regulatory accounting and do not impact earnings.
(2) 
NDT funds hold equity portfolios whose performance is benchmarked against the Alerian MLP Index.
(3) 
Primarily consists of short-term cash investments.
(4) 
Excludes $1 million and $(3) million as of December 31, 2011 and 2010, respectively, of receivables, payables, taxes and accrued income associated with the financial instruments reflected within the fair value table.
Rollforward of Level 3 Measurements
The following table provides a reconciliation of changes in the fair value of NUG contracts held by Penelec and classified as Level 3 in the fair value hierarchy for the years ending December 31, 2011 and 2010:
 
 
Derivative Asset NUG Contracts(1)
 
Derivative Liability NUG Contracts(1)
 
Net
NUG Contracts(1)
 
 
(In millions)
December 31, 2009 Balance
 
$
16

 
$
(101
)
 
$
(85
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 
(11
)
 
(108
)
 
(119
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(1
)
 
92

 
91

Transfers in (out) of Level 3
 

 

 

December 31, 2010 Balance
 
$
4

 
$
(117
)
 
$
(113
)
Realized gain (loss)
 

 

 

Unrealized gain (loss)
 

 
(103
)
 
(103
)
Purchases
 

 

 

Issuances
 

 

 

Sales
 

 

 

Settlements
 
(1
)
 
97

 
96

Transfers in (out) of Level 3
 

 

 

December 31, 2011 Balance
 
$
3

 
$
(123
)
 
$
(120
)
(1) 
Changes in the fair value of NUG contracts are subject to regulatory accounting and do not impact earnings.