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Long-term Debt
12 Months Ended
Dec. 31, 2013
Debt Disclosure [Abstract]  
Debt Disclosure [Text Block]
Long-term Debt
 
December 31, 2013
 
December 31, 2012
 
Long-Term
 
Current(1)
 
Long-Term
 
Current(1)
 
(in millions)
Long-term debt:
 
 
 
 
 
 
 
First mortgage bonds 9.15% due 2021(2)
$
102

 
$

 
$
102

 
$

General mortgage bonds 2.25% to 6.95% due 2022 to 2042
1,312

 

 
1,312

 
450

Pollution control bonds 4.25% to 5.60% due 2017 to 2027(3)
183

 

 
183

 

System restoration bonds 1.833% to 4.243% due 2014 to 2022
463

 
47

 
510

 
46

Transition bonds 0.90% to 5.302% due 2014 to 2024
2,583

 
307

 
2,890

 
401

Other
(2
)
 

 
(2
)
 

Total long-term debt
$
4,641

 
$
354

 
$
4,995

 
$
897

  ____________
(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.

Debt Repayments. In March 2013, CenterPoint Houston retired $450 million aggregate principal amount of its 5.70% general mortgage bonds at their maturity.

On August 1, 2013, in connection with the redemption of approximately $92 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Energy, CenterPoint Houston prepaid a note payable to its sole member, having an aggregate principal amount of approximately $92 million and bearing interest at an annual rate of 4%, at 101% of the principal amount of the note. The redeemed pollution control bonds were collateralized by approximately $92 million aggregate principal amount of CenterPoint Houston's first mortgage bonds that were retired on August 1, 2013 in connection with the redemption.

On October 15, 2013, in connection with the redemption of approximately $59 million aggregate principal amount of pollution control bonds issued on behalf of CenterPoint Energy, CenterPoint Houston prepaid a note payable to its sole member, having an aggregate principal amount of approximately $59 million and bearing interest at an annual rate of 4%, at 101% of the principal amount of the note. The redeemed pollution control bonds were collateralized by approximately $59 million aggregate principal amount of CenterPoint Houston's first mortgage bonds that were retired on October 15, 2013 in connection with the redemption.

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 initially had an interest rate of 5.60% prior to CenterPoint Houston's purchase but 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.

Transition and System Restoration Bonds. As of December 31, 2013, CenterPoint Houston had four 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, 2013 and 2012, CenterPoint Houston had the following revolving credit facility and utilization of such facility (in millions):
December 31, 2013
 
December 31, 2012
Size of
Facility
 
Loans
 
Letters
of Credit
 
Size of
Facility
 
Loans
 
Letters
of Credit
$
300

 
$

 
$
4

 
$
300

 
$

 
$
4



CenterPoint Houston’s $300 million credit facility, which is scheduled to terminate September 9, 2018, can be drawn at LIBOR plus 112.5 basis points 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.

Maturities.  CenterPoint Houston’s maturities of long-term debt and scheduled payments on transition and system restoration bonds are $354 million in 2014, $372 million in 2015, $391 million in 2016, $539 million in 2017 and $434 million in 2018. These maturities include transition and system restoration bond principal repayments on scheduled payment dates aggregating $354 million in 2014, $372 million in 2015, $391 million in 2016, $411 million in 2017 and $434 million in 2018.

Liens.  As of December 31, 2013, 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 2013, 2012 and 2011 have been satisfied by certification of property additions. The replacement fund requirement to be satisfied in 2014 is approximately $198 million, and the sinking fund requirement to be satisfied in 2014 is approximately $1.6 million. CenterPoint Houston expects to meet these 2014 obligations by certification of property additions. As of December 31, 2013, CenterPoint Houston’s assets were also subject to liens securing approximately $1.9 billion of general mortgage bonds which are junior to the liens of the first mortgage bonds.