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Long-term Debt
12 Months Ended
Dec. 31, 2014
Debt Disclosure [Abstract]  
Debt Disclosure [Text Block]
Long-term Debt
 
December 31, 2014
 
December 31, 2013
 
Long-Term
 
Current(1)
 
Long-Term
 
Current(1)
 
(in millions)
Long-term debt:
 
 
 
 
 
 
 
First mortgage bonds 9.15% due 2021
$
102

 
$

 
$
102

 
$

General mortgage bonds 2.25% to 6.95% due 2022 to 2044 (2)
1,912

 

 
1,312

 

Pollution control bonds 4.25% to 5.60% due 2017 to 2027(3)

 

 
183

 

System restoration bonds 1.833% to 4.243% due 2015 to 2022
415

 
48

 
463

 
47

Transition bonds 0.90% to 5.302% due 2015 to 2024
2,259

 
324

 
2,583

 
307

Other
(8
)
 

 
(2
)
 

Total long-term debt
$
4,680

 
$
372

 
$
4,641

 
$
354

  ____________
(1)
Includes amounts due or scheduled to be paid within one year of the date noted.

(2)
Debt issued as collateral is excluded from the financial statements because of the contingent nature of the obligation.

(3)
These series of debt are collateralized by CenterPoint Houston’s general mortgage bonds.

On March 17, 2014, CenterPoint Houston issued $600 million principal amount of 4.50% General Mortgage Bonds due 2044.

Debt Repayments. Approximately $44 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on March 3, 2014 at 101% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Approximately $56 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were purchased by CenterPoint Houston on March 3, 2014 at 101% of their principal amount plus accrued interest pursuant to the mandatory tender provisions of the bonds. The bonds had an interest rate of 5.60% prior to CenterPoint Houston’s purchase and have a variable rate thereafter. The bonds mature in 2027 and are collateralized by general mortgage bonds of CenterPoint Houston. The purchased pollution control bonds may be remarketed. These bonds are not reflected in the consolidated financial statements.

Approximately $84 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Houston were redeemed on June 2, 2014 at 100% of their principal amount plus accrued interest. The bonds had an interest rate of 4.25%, were scheduled to mature in 2017 and were collateralized by general mortgage bonds of CenterPoint Houston.

Transition and System Restoration Bonds. As of December 31, 2014, CenterPoint Houston had special purpose subsidiaries consisting of transition and system restoration bond companies, which it consolidates. The consolidated special purpose subsidiaries are wholly owned bankruptcy remote entities that were formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance of transition bonds or system restoration bonds and activities incidental thereto. These transition bonds and system restoration bonds are payable only through the imposition and collection of “transition” or “system restoration” charges, as defined in the Texas Public Utility Regulatory Act, which are irrevocable, non-bypassable charges payable by most of CenterPoint Houston’s retail electric customers in order to provide recovery of authorized qualified costs. CenterPoint Houston has no payment obligations in respect of the transition and system restoration bonds other than to remit the applicable transition or system restoration charges it collects. Each special purpose entity is the sole owner of the right to impose, collect and receive the applicable transition or system restoration charges securing the bonds issued by that entity. Creditors of CenterPoint Energy or CenterPoint Houston have no recourse to any assets or revenues of the transition and system restoration bond companies (including the transition and system restoration charges), and the holders of transition bonds or system restoration bonds have no recourse to the assets or revenues of CenterPoint Energy or CenterPoint Houston.

Revolving Credit Facility. As of December 31, 2014 and 2013, CenterPoint Houston had the following revolving credit facility and utilization of such facility (in millions):
December 31, 2014
 
December 31, 2013
Size of
Facility
 
Loans
 
Letters
of Credit
 
Size of
Facility
 
Loans
 
Letters
of Credit
$
300

 
$

 
$
4

 
$
300

 
$

 
$
4



CenterPoint Houston’s $300 million revolving credit facility, which is scheduled to terminate on September 9, 2019, can be drawn at LIBOR plus 1.125% based on CenterPoint Houston’s current credit ratings. The revolving credit facility contains a financial covenant which limits CenterPoint Houston’s consolidated debt (excluding transition and system restoration bonds) to an amount not to exceed 65% of CenterPoint Houston’s consolidated capitalization. CenterPoint Houston was in compliance with all financial covenants as of December 31, 2014.

Maturities.  CenterPoint Houston has no maturities of long-term debt for 2015 through 2019. CenterPoint Houston’s scheduled payments on transition and system restoration bonds are $372 million in 2015, $391 million in 2016, $411 million in 2017, $434 million in 2018 and $458 million in 2019.

Liens.  As of December 31, 2014, CenterPoint Houston’s assets were subject to liens securing approximately $102 million of first mortgage bonds. Sinking or improvement fund and replacement fund requirements on the first mortgage bonds may be satisfied by certification of property additions. Sinking fund and replacement fund requirements for 2014, 2013 and 2012 have been satisfied by certification of property additions. The replacement fund requirement to be satisfied in 2015 is approximately $209 million, and the sinking fund requirement to be satisfied in 2015 is approximately $1.6 million. CenterPoint Houston expects to meet these 2015 obligations by certification of property additions. As of December 31, 2014, CenterPoint Houston’s assets were also subject to liens securing approximately $2.4 billion of general mortgage bonds which are junior to the liens of the first mortgage bonds.