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Short-Term Borrowings And Long-Term Debt
9 Months Ended
Sep. 30, 2013
Debt and Capital Lease Obligations [Abstract]  
Short-Term Borrowings And Long-Term Debt
SHORT-TERM BORROWINGS AND LONG-TERM DEBT

Short-Term Borrowings

At September 30, 2013, outstanding short-term borrowings totaled $2.226 billion, which included $2.054 billion under the TCEH Revolving Credit Facility at a weighted average interest rate of 4.68%, excluding customary fees, and $172 million under the accounts receivable securitization program. On October 29, 2013, we terminated the accounts receivable securitization program and repaid all outstanding obligations under the program (see Note 4).

At December 31, 2012, outstanding short-term borrowings totaled $2.136 billion, which included $2.054 billion under the TCEH Revolving Credit Facility at a weighted average interest rate of 4.40%, excluding customary fees, and $82 million under the accounts receivable securitization program.

Credit Facilities

Credit facilities and related cash borrowings at September 30, 2013 are presented below. Available letter of credit capacity totaled $171 million at September 30, 2013 as discussed below. The facilities are all senior secured facilities of TCEH.
 
 
 
September 30, 2013
Facility
Maturity Date
 
Facility Limit
 
Letters of Credit
 
Cash Borrowings
 
Availability
TCEH Revolving Credit Facility (a)
October 2016
 
$
2,054

 
$
—

 
$
2,054

 
$
—

TCEH Letter of Credit Facility (b)
October 2017 (b)
 
1,062

 
—

 
1,062

 
—

Total TCEH
 
 
$
3,116

 
$
—

 
$
3,116

 
$
—

___________
(a)
Facility used for borrowings for general corporate purposes. Borrowings are classified as short-term borrowings. At September 30, 2013, borrowings under the facility bear interest at LIBOR plus 4.50%, and a commitment fee is payable quarterly in arrears at a rate per annum equal to 1.00% of the average daily unused portion of the facility. In January 2013, commitments previously maturing in 2013 were extended to 2016 as discussed below.
(b)
Facility, $42 million of which matures in October 2014, used for issuing letters of credit for general corporate purposes, including, but not limited to, providing collateral support under hedging arrangements and other commodity transactions that are not secured by a first-lien interest in the assets of TCEH. The borrowings under this facility have been recorded by TCEH as restricted cash that supports issuances of letters of credit and are classified as long-term debt. At September 30, 2013, the restricted cash totaled $947 million, after reduction for a $115 million letter of credit drawn in 2009 related to an office building financing. At September 30, 2013, the restricted cash supports $776 million in letters of credit outstanding, leaving $171 million in available letter of credit capacity.

Amendment and Extension of TCEH Revolving Credit Facility — In January 2013, the Credit Agreement governing the TCEH Senior Secured Facilities was amended to extend the maturity date of the $645 million of commitments maturing in October 2013 to October 2016, bringing the maturity date of all commitments under the TCEH Revolving Credit Facility totaling $2.054 billion to October 2016. The extended commitments have the same terms and conditions as the existing commitments expiring in October 2016 under the Credit Agreement. Fees in consideration for the extension were settled through the incurrence of $340 million principal amount of incremental term loans under the TCEH Term Loan Facilities maturing in October 2017. In connection with the extension request, TCEH eliminated its ability to draw letters of credit under the TCEH Revolving Credit Facility. At the date of the extension, there were no outstanding letters of credit under the TCEH Revolving Credit Facility.

Long-Term Debt

At September 30, 2013 and December 31, 2012, long-term debt consisted of the following:
 
September 30, 2013
 
December 31, 2012
TCEH
 
 
 
Senior Secured Facilities:
 
 
 
3.710% TCEH Term Loan Facilities maturing October 10, 2014 (a)(b)
$
3,809

 
$
3,809

3.679% TCEH Letter of Credit Facility maturing October 10, 2014 (b)
42

 
42

4.709% TCEH Term Loan Facilities maturing October 10, 2017 (a)(b)(c)
15,710

 
15,370

4.679% TCEH Letter of Credit Facility maturing October 10, 2017 (b)
1,020

 
1,020

11.5% Fixed Senior Secured Notes due October 1, 2020
1,750

 
1,750

15% Fixed Senior Secured Second Lien Notes due April 1, 2021
336

 
336

15% Fixed Senior Secured Second Lien Notes due April 1, 2021, Series B
1,235

 
1,235

10.25% Fixed Senior Notes due November 1, 2015 (c)
2,046

 
2,046

10.25% Fixed Senior Notes due November 1, 2015, Series B (c)
1,442

 
1,442

10.50 / 11.25% Senior Toggle Notes due November 1, 2016
1,749

 
1,749

Pollution Control Revenue Bonds:

 

Brazos River Authority:

 

5.40% Fixed Series 1994A due May 1, 2029
39

 
39

7.70% Fixed Series 1999A due April 1, 2033
111

 
111

6.75% Fixed Series 1999B due September 1, 2034, remarketing date April 1, 2013 (d)
—

 
16

7.70% Fixed Series 1999C due March 1, 2032
50

 
50

8.25% Fixed Series 2001A due October 1, 2030
71

 
71

8.25% Fixed Series 2001D-1 due May 1, 2033
171

 
171

0.089% Floating Series 2001D-2 due May 1, 2033 (e)
97

 
97

0.210% Floating Taxable Series 2001I due December 1, 2036 (f)
62

 
62

0.089% Floating Series 2002A due May 1, 2037 (e)
45

 
45

6.75% Fixed Series 2003A due April 1, 2038, remarketing date April 1, 2013 (d)
—

 
44

6.30% Fixed Series 2003B due July 1, 2032
39

 
39

6.75% Fixed Series 2003C due October 1, 2038
52

 
52

5.40% Fixed Series 2003D due October 1, 2029, remarketing date October 1, 2014 (d)
31

 
31

5.00% Fixed Series 2006 due March 1, 2041
100

 
100

Sabine River Authority of Texas:

 

6.45% Fixed Series 2000A due June 1, 2021
51

 
51

5.20% Fixed Series 2001C due May 1, 2028
70

 
70

5.80% Fixed Series 2003A due July 1, 2022
12

 
12

6.15% Fixed Series 2003B due August 1, 2022
45

 
45

Trinity River Authority of Texas:

 

6.25% Fixed Series 2000A due May 1, 2028
14

 
14

Unamortized fair value discount related to pollution control revenue bonds (g)
(107
)
 
(112
)
Other:

 

7.48% Fixed Secured Facility Bonds with amortizing payments through January 2017
36

 
—

7.46% Fixed Secured Facility Bonds with amortizing payments through January 2015
4

 
12

7% Fixed Senior Notes due March 15, 2013
—

 
5

Capital leases
56

 
64

Other
3

 
3

Unamortized discount
(110
)
 
(10
)
Unamortized fair value discount (g)
—

 
(1
)
Total TCEH
30,081

 
29,880

 
September 30, 2013
 
December 31, 2012
EFCH (parent entity)
 
 
 
9.58% Fixed Notes due in annual installments through December 4, 2019 (h)
$
35

 
$
35

8.254% Fixed Notes due in quarterly installments through December 31, 2021 (h)
35

 
39

1.065% Floating Rate Junior Subordinated Debentures, Series D due January 30, 2037 (b)
1

 
1

8.175% Fixed Junior Subordinated Debentures, Series E due January 30, 2037
8

 
8

Unamortized fair value discount (g)
(6
)
 
(7
)
Subtotal
73

 
76

EFH Corp. debt pushed down (i)
 
 
 
10% Fixed Senior Notes due January 15, 2020
—

 
330

9.75% Fixed Senior Notes due October 15, 2019
—

 
58

10.875% Fixed Senior Notes due November 1, 2017
16

 
32

11.25 / 12.00% Senior Toggle Notes due November 1, 2017
14

 
30

Subtotal — EFH Corp. debt pushed down
30

 
450

Total EFCH (parent entity)
103

 
526

Total EFCH consolidated
30,184

 
30,406

Less amount due currently
(32
)
 
(96
)
Less amount held by affiliates (Note 11)
(382
)
 
(382
)
Total long-term debt
$
29,770

 
$
29,928

____________
(a)
Interest rate swapped to fixed on $18.140 billion principal amount of maturities through October 2014 and up to an aggregate $12.6 billion principal amount from October 2014 through October 2017.
(b)
Interest rates in effect at September 30, 2013.
(c)
As discussed below and in Note 11, principal amounts of notes/term loans totaling $382 million at both September 30, 2013 and December 31, 2012 were held by EFH Corp. and EFIH.
(d)
These series are in the multiannual interest rate mode and are subject to mandatory tender prior to maturity on the mandatory remarketing date. On such date, the interest rate and interest rate period will be reset for the bonds.
(e)
Interest rates in effect at September 30, 2013. These series are in a daily interest rate mode and are classified as long-term as they are supported by long-term irrevocable letters of credit.
(f)
Interest rate in effect at September 30, 2013. This series is in a weekly interest rate mode and is classified as long-term as it is supported by long-term irrevocable letters of credit.
(g)
Amount represents unamortized fair value adjustments recorded under purchase accounting.
(h)
EFCH's obligations with respect to these financings are guaranteed by EFH Corp. and secured on a first-priority basis by, among other things, an undivided interest in the Comanche Peak nuclear generation facility.
(i)
Represents 50% of the amount of these EFH Corp. securities guaranteed by, and pushed down to (pushed-down debt), EFCH (parent entity) per the discussion below under "Guarantees and Push Down of EFH Corp. Debt."

Debt Amounts Due Currently

Amounts due currently (within twelve months) at September 30, 2013 total $32 million and consist of scheduled installment payments on capital leases and debt securities.

Debt Related Activity in 2013

Principal amounts of long-term debt issued in the nine months ended September 30, 2013 consisted of $340 million principal amount of incremental term loans under the TCEH Term Loan Facilities discussed in "Amendment and Extension of TCEH Revolving Credit Facility" above.

Repayments of long-term debt in the nine months ended September 30, 2013 totaled $94 million and consisted of $86 million of payments of principal at scheduled maturity or mandatory tender and remarketing dates (including $60 million of pollution control revenue bond and $17 million of fixed secured facility bond payments) and $8 million of contractual payments under capital leases.

In April 2013, TCEH acquired for $40 million in cash the owner participant interest in a trust established to lease six natural gas-fueled combustion turbines to TCEH. The interest in the trust was held by an unaffiliated party. The trust was consolidated in the second quarter 2013. No gain or loss was recognized on the transaction. The estimated fair value of the combustion turbine assets of $83 million approximated the total of the estimated fair value of the debt assumed and cash paid. In recording the combustion turbine assets, the fair value was reduced by the remaining deferred lease liability and the unamortized lease valuation reserve established in accounting for the Merger, which were reversed and totaled $18 million. At June 30, 2013, the principal amount of the trust's debt totaled $45 million and is payable in semiannual installments through January 1, 2017.

EFIH Debt Exchanges and Distributions Involving EFH Corp. Debt Guaranteed by EFCH (see discussion of debt guarantee below) — In exchanges in January 2013, EFIH and EFIH Finance issued $1.302 billion principal amount of EFIH 10% Senior Secured Notes due 2020 (EFIH 10% Notes) in exchange for $1.310 billion total principal amount of EFH Corp. and EFIH senior secured notes consisting of: (i) $113 million principal amount of EFH Corp. 9.75% Senior Secured Notes due 2019 (EFH Corp. 9.75% Notes), (ii) $1.058 billion principal amount of EFH Corp. 10% Senior Secured Notes due 2020 (EFH Corp. 10% Notes), and (iii) $139 million principal amount of EFIH senior secured notes.

In connection with these debt exchange transactions, EFH Corp. received the requisite consents from holders of the EFH Corp. 9.75% Notes and EFH Corp. 10% Notes to certain amendments to the respective indentures governing these notes. These amendments, among other things, made EFCH and EFIH unrestricted subsidiaries under the EFH Corp. 9.75% Notes and EFH Corp. 10% Notes, thereby eliminating EFCH's and EFIH's guarantees of the notes.

In additional exchanges in January 2013, EFIH and EFIH Finance issued $89 million principal amount of 11.25/12.25% Toggle Notes due 2018 (EFIH Toggle Notes) in exchange for $95 million total principal amount of EFH Corp. senior notes consisting of: (i) $31 million principal amount of EFH Corp. 10.875% Senior Notes due 2017 (EFH Corp. 10.875% Notes), (ii) $33 million principal amount of EFH Corp. 11.25%/12.00% Senior Toggle Notes due 2017 (EFH Corp. Toggle Notes) and (iii) $31 million principal amount of other EFH Corp. unsecured debt.

EFIH received a total of $1.266 billion principal amount of EFH Corp. debt in these exchanges.

In the first quarter 2013, EFIH distributed $6.360 billion principal amount of EFH Corp. debt guaranteed by EFCH that EFIH previously received in debt exchanges, including $1.235 billion (of the $1.266 billion) received in January 2013, as a dividend to EFH Corp., which cancelled the notes. The dividend included $1.715 billion principal amount of EFH Corp. 10.875% Notes, $3.474 billion principal amount of EFH Corp. Toggle Notes, $1.058 billion principal amount of EFH Corp. 10% Notes and $113 million principal amount of EFH Corp. 9.75% Notes.

Guarantee and Push Down of EFH Corp. Debt

Merger-related debt of EFH Corp. and its subsidiaries consists of debt issued or existing at the time of the Merger. Debt issued in exchange for Merger-related debt is considered Merger-related. Debt issuances for cash are considered Merger-related debt to the extent the proceeds are used to repurchase Merger-related debt. EFCH and EFIH (excluding their subsidiaries) fully and unconditionally guarantee on a joint and several basis the Merger-related debt of EFH Corp. (parent). Such debt is subject to push down in accordance with SEC Staff Accounting Bulletin Topic 5-J, and as a result, a portion of such debt and related interest expense is reflected in our financial statements. Merger-related debt of EFH Corp. held by its subsidiaries is not subject to push down.

As a result of transactions in the first quarter 2013 discussed above, debt guaranteed and subject to push down at September 30, 2013 totals $60 million and consists of $33 million principal amount of EFH Corp. 10.875% Senior Notes and $27 million principal amount of EFH Corp. 11.25%/12.00% Senior Toggle Notes. The amount reflected in our balance sheet as pushed down debt ($30 million and $450 million at September 30, 2013 and December 31, 2012, respectively, as shown in the long-term debt table above) represents 50% of the principal amount of the EFH Corp. Merger-related debt guaranteed. This percentage reflects the fact that at the time of the Merger, the equity investments of EFCH and EFIH in their respective operating subsidiaries were essentially equal amounts. Because payment of principal and interest on the debt is the responsibility of EFH Corp., we record the settlement of such amounts as noncash capital contributions from EFH Corp.

The following table presents an analysis of the total outstanding principal amount of EFH Corp. debt guaranteed by EFCH and EFIH at December 31, 2012 and September 30, 2013, respectively.
 
 
December 31, 2012
 
 
 
 
Securities Guaranteed (principal amounts)
 
Held by EFIH
 
Subject to Push Down
 
Not Merger-Related
 
Total Guaranteed
 
Debt Cancelled in 2013
 
Total Guaranteed September 30, 2013 (c)
EFH Corp. 9.75% Senior Notes (a)
 
$
—

 
$
115

 
$
—

 
$
115

 
113

 
$
—

EFH Corp. 10% Senior Notes (a)
 
—

 
661

 
400

 
1,061

 
1,058

 
—

EFH Corp. 10.875% Senior Notes
 
1,685

 
64

 
—

 
1,749

 
1,715

 
33

EFH Corp. 11.25/12.00% Senior Toggle Notes
 
3,441

 
60

 
—

 
3,501

 
3,474

 
27

Subtotal
 
$
5,126

 
$
900

 
$
400

 
6,426

 
$
6,360

 
60

TCEH Demand Notes (b)
 
 
 
 
 
 
 
698

 
 
 
—

Total
 
 
 
 
 
 
 
$
7,124

 
 
 
$
60


____________

(a)
As a result of transactions completed in the first quarter 2013, as discussed above, the guarantees of the EFH Corp. 9.75% Notes and EFH Corp. 10% Notes were eliminated.
(b)
The TCEH Demand Notes were settled in January 2013. See Note 11.
(c)
These amounts are subject to push down.

Information Regarding Other Significant Outstanding Debt

TCEH Senior Secured Facilities — Borrowings under the TCEH Senior Secured Facilities totaled $22.635 billion at September 30, 2013 and consisted of:

•
$3.809 billion of TCEH Term Loan Facilities maturing in October 2014 with interest payable at LIBOR plus 3.50%;
•
$15.710 billion of TCEH Term Loan Facilities maturing in October 2017 with interest payable at LIBOR plus 4.50%;
•
$42 million of cash borrowed under the TCEH Letter of Credit Facility maturing in October 2014 with interest payable at LIBOR plus 3.50% (see discussion under "Credit Facilities" above);
•
$1.020 billion of cash borrowed under the TCEH Letter of Credit Facility maturing in October 2017 with interest payable at LIBOR plus 4.50% (see discussion under "Credit Facilities" above), and
•
Amounts borrowed under the TCEH Revolving Credit Facility, which may be reborrowed from time to time until October 2016 and represent the entire amount of commitments under the facility totaling $2.054 billion at September 30, 2013. See "Credit Facilities" above for discussion regarding the maturity date extension of $645 million in commitments from 2013 to 2016.

Each of the loans described above that matures in 2016 or 2017 includes a "springing maturity" provision pursuant to which (i) in the event that more than $500 million aggregate principal amount of the TCEH 10.25% Notes due in 2015 (other than notes held by EFH Corp. or its controlled affiliates at March 31, 2011 to the extent held at the determination date as defined in the Credit Agreement) or more than $150 million aggregate principal amount of the TCEH Toggle Notes due in 2016 (other than notes held by EFH Corp. or its controlled affiliates at March 31, 2011 to the extent held at the determination date as defined in the Credit Agreement), as applicable, remain outstanding as of 91 days prior to the maturity date of the applicable notes and (ii) TCEH's total debt to Adjusted EBITDA ratio (as defined in the TCEH Senior Secured Facilities) is greater than 6.00 to 1.00 at the applicable determination date, then the maturity date of the extended loans will automatically change to 90 days prior to the maturity date of the applicable notes.

Under the terms of the TCEH Senior Secured Facilities, the commitments of the lenders to make loans to TCEH are several and not joint. Accordingly, if any lender fails to make loans to TCEH, TCEH's available liquidity could be reduced by an amount up to the aggregate amount of such lender's commitments under the TCEH Senior Secured Facilities.

The TCEH Senior Secured Facilities are fully and unconditionally guaranteed jointly and severally on a senior secured basis by EFCH, and subject to certain exceptions, each existing and future direct or indirect wholly owned US subsidiary of TCEH. The TCEH Senior Secured Facilities, along with the TCEH Senior Secured Notes and certain commodity hedging transactions and the interest rate swaps described under "TCEH Interest Rate Swap Transactions" below, are secured on a first-priority basis by (i) substantially all of the current and future assets of TCEH and TCEH's subsidiaries who are guarantors of such facilities and (ii) pledges of the capital stock of TCEH and certain current and future direct or indirect subsidiaries of TCEH.

TCEH 11.5% Senior Secured Notes — At September 30, 2013, the principal amount of the TCEH 11.5% Senior Secured Notes totaled $1.750 billion. The notes mature in October 2020, with interest payable in cash quarterly in arrears on January 1, April 1, July 1 and October 1, at a fixed rate of 11.5% per annum. The notes are fully and unconditionally guaranteed on a joint and several basis by EFCH and each subsidiary of TCEH that guarantees the TCEH Senior Secured Facilities (collectively, the Guarantors). The notes are secured, on a first-priority basis, by security interests in all of the assets of TCEH, and the guarantees are secured on a first-priority basis by all of the assets and equity interests held by the Guarantors, in each case, to the extent such assets and equity interests secure obligations under the TCEH Senior Secured Facilities (the TCEH Collateral), subject to certain exceptions and permitted liens.

The notes are (i) senior obligations and rank equally in right of payment with all senior indebtedness of TCEH, (ii) senior in right of payment to all existing or future unsecured and second-priority secured debt of TCEH to the extent of the value of the TCEH Collateral and (iii) senior in right of payment to any future subordinated debt of TCEH. These notes are effectively subordinated to all secured obligations of TCEH that are secured by assets other than the TCEH Collateral, to the extent of the value of the assets securing such obligations.

TCEH 15% Senior Secured Second Lien Notes (including Series B) — At September 30, 2013, the principal amount of the TCEH 15% Senior Secured Second Lien Notes totaled $1.571 billion. These notes mature in April 2021, with interest payable in cash quarterly in arrears on January 1, April 1, July 1 and October 1 at a fixed rate of 15% per annum. The notes are fully and unconditionally guaranteed on a joint and several basis by EFCH and, subject to certain exceptions, each subsidiary of TCEH that guarantees the TCEH Senior Secured Facilities. The notes are secured, on a second-priority basis, by security interests in all of the assets of TCEH, and the guarantees (other than the guarantee of EFCH) are secured on a second-priority basis by all of the assets and equity interests of all of the Guarantors other than EFCH (collectively, the Subsidiary Guarantors), in each case, to the extent such assets and security interests secure obligations under the TCEH Senior Secured Facilities on a first-priority basis, subject to certain exceptions (including the elimination of the pledge of equity interests of any Subsidiary Guarantor to the extent that separate financial statements would be required to be filed with the SEC for such Subsidiary Guarantor under Rule 3-16 of Regulation S-X) and permitted liens. The guarantee from EFCH is not secured.

The notes are senior obligations of the issuer and rank equally in right of payment with all senior indebtedness of TCEH, are senior in right of payment to all existing or future unsecured debt of TCEH to the extent of the value of the TCEH Collateral (after taking into account any first-priority liens on the TCEH Collateral) and are senior in right of payment to any future subordinated debt of TCEH. These notes are effectively subordinated to TCEH's obligations under the TCEH Senior Secured Facilities, the TCEH Senior Secured Notes and TCEH's commodity and interest rate hedges that are secured by a first-priority lien on the TCEH Collateral and any future obligations subject to first-priority liens on the TCEH Collateral, to the extent of the value of the TCEH Collateral, and to all secured obligations of TCEH that are secured by assets other than the TCEH Collateral, to the extent of the value of the assets securing such obligations.

TCEH 10.25% Senior Notes (including Series B) and 10.50/11.25% Senior Toggle Notes (collectively, the TCEH Senior Notes) — At September 30, 2013, the principal amount of the TCEH Senior Notes totaled $5.237 billion, including $363 million aggregate principal amount held by EFH Corp. and EFIH, and the notes are fully and unconditionally guaranteed on a joint and several unsecured basis by TCEH's direct parent, EFCH (which owns 100% of TCEH), and by each subsidiary that guarantees the TCEH Senior Secured Facilities. The TCEH 10.25% Notes mature in November 2015, with interest payable in cash semi-annually in arrears on May 1 and November 1 at a fixed rate of 10.25% per annum. The TCEH Toggle Notes mature in November 2016, with interest payable semi-annually in arrears on May 1 and November 1 at a fixed rate of 10.50% per annum.

Fair Value of Long-Term Debt

At September 30, 2013 and December 31, 2012, the estimated fair value of our long-term debt (excluding capital leases) totaled $15.873 billion and $17.858 billion, respectively, and the carrying amount totaled $30.128 billion and $30.342 billion, respectively. At September 30, 2013 and December 31, 2012, the estimated fair value of our short-term borrowings under the TCEH Revolving Credit Facilities totaled $1.371 billion and $1.500 billion, respectively, and the carrying amount totaled $2.054 billion. We determine fair value in accordance with accounting standards as discussed in Note 8, and at September 30, 2013, our debt fair value represents Level 2 valuations. We obtain security pricing from a vendor who uses broker quotes and third-party pricing services to determine fair values. Where relevant, these prices are validated through subscription services such as Bloomberg.

TCEH Interest Rate Swap Transactions

TCEH employs interest rate swaps to hedge exposure to its variable rate debt. As reflected in the table below, at September 30, 2013, TCEH has entered into the following series of interest rate swap transactions that effectively fix the interest rates at between 5.5% and 9.3%.
Fixed Rates
 
Expiration Dates
 
Notional Amount
5.5
%
-
9.3%
 
October 2013 through October 2014
 
 
$
18.140

billion (a)
 
6.8
%
-
9.0%
 
October 2015 through October 2017
 
 
$
12.600

billion (b)
 
___________
(a)
Swaps related to an aggregate $1.6 billion principal amount of debt expired in 2013. Per the terms of the transactions, the notional amount of swaps entered into in 2011 grew by $1.280 billion in 2013, substantially offsetting the expired swaps.
(b)
These swaps are effective from October 2014 through October 2017. The $12.6 billion notional amount of swaps includes $3 billion that expires in October 2015 with the remainder expiring in October 2017.

TCEH has also entered into interest rate basis swap transactions that further reduce the fixed borrowing costs achieved through the interest rate swaps. Basis swaps in effect at September 30, 2013 totaled $11.967 billion notional amount. The basis swaps relate to debt outstanding through 2014.

The interest rate swap counterparties are secured on an equal and ratable basis by the same collateral pledged to the lenders under the TCEH Senior Secured Facilities and the TCEH Senior Secured Notes.

The interest rate swaps have resulted in net gains (losses) reported in interest expense and related charges as follows:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2013
 
2012
 
2013
 
2012
Realized net loss
$
(160
)
 
$
(168
)
 
$
(466
)
 
$
(505
)
Unrealized net gain (loss)
413

 
(20
)
 
899

 
(16
)
Total
$
253

 
$
(188
)
 
$
433

 
$
(521
)


The cumulative unrealized mark-to-market net liability related to all TCEH interest rate swaps totaled $1.167 billion and $2.065 billion at September 30, 2013 and December 31, 2012, respectively, of which $57 million and $65 million (both pretax), respectively, were reported in accumulated other comprehensive income. See Note 8.