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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2014
Regulatory Assets [Line Items]  
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2014 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$769.9

 

$247.6

River Bend

$637.7

 

($25.5
)
Waterford 3

$383.6

 

$145.5

Grand Gulf

$679.8

 

$80.4

Entergy Wholesale Commodities

$2,899.9

 

$—


Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants. The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2013 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$710.9

 

$219.1

River Bend

$573.7

 

($28.7
)
Waterford 3

$347.3

 

$128.5

Grand Gulf

$603.9

 

$60.8

Entergy Wholesale Commodities

$2,667.3

 

$—
Entergy Arkansas [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2014 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$769.9

 

$247.6

River Bend

$637.7

 

($25.5
)
Waterford 3

$383.6

 

$145.5

Grand Gulf

$679.8

 

$80.4

Entergy Wholesale Commodities

$2,899.9

 

$—


Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants. The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2013 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$710.9

 

$219.1

River Bend

$573.7

 

($28.7
)
Waterford 3

$347.3

 

$128.5

Grand Gulf

$603.9

 

$60.8

Entergy Wholesale Commodities

$2,667.3

 

$—
Entergy Gulf States Louisiana [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2014 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$769.9

 

$247.6

River Bend

$637.7

 

($25.5
)
Waterford 3

$383.6

 

$145.5

Grand Gulf

$679.8

 

$80.4

Entergy Wholesale Commodities

$2,899.9

 

$—


Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants. The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2013 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$710.9

 

$219.1

River Bend

$573.7

 

($28.7
)
Waterford 3

$347.3

 

$128.5

Grand Gulf

$603.9

 

$60.8

Entergy Wholesale Commodities

$2,667.3

 

$—
Entergy Louisiana [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2014 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$769.9

 

$247.6

River Bend

$637.7

 

($25.5
)
Waterford 3

$383.6

 

$145.5

Grand Gulf

$679.8

 

$80.4

Entergy Wholesale Commodities

$2,899.9

 

$—


Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants. The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2013 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$710.9

 

$219.1

River Bend

$573.7

 

($28.7
)
Waterford 3

$347.3

 

$128.5

Grand Gulf

$603.9

 

$60.8

Entergy Wholesale Commodities

$2,667.3

 

$—
Entergy Mississippi [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Entergy New Orleans [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Entergy Texas [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
System Energy [Member]  
Regulatory Assets [Line Items]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2014
 
2013
 
(In Millions)
Entergy Arkansas
$59.0
 
$18.6
Entergy Gulf States Louisiana
($36.9)
 
($35.3)
Entergy Louisiana
($45.7)
 
($37.0)
Entergy Mississippi
$76.3
 
$64.3
Entergy New Orleans
$35.2
 
$34.9
Entergy Texas
$18.9
 
$15.1
System Energy
$55.7
 
$56.0
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2014 by Entergy were as follows:
 
Liabilities as
of December 31,
2013
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2014
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas
$723.8
 

$47.0

 

$47.6

 

$—

 

$818.4

Entergy Gulf States Louisiana
$403.1
 

$23.5

 

$20.0

 

$—

 

$446.6

Entergy Louisiana
$479.1
 

$24.6

 

$—

 

$—

 

$503.7

Entergy Mississippi
$6.4
 

$0.4

 

$—

 

$—

 

$6.8

Entergy New Orleans
$2.3
 

$0.2

 

$—

 

$—

 

$2.5

Entergy Texas
$4.3
 

$0.3

 

$—

 

$—

 

$4.6

System Energy
$616.2
 

$41.8

 

$99.9

 

$—

 

$757.9

Entergy Wholesale Commodities
$1,698.2
 

$139.7

 

$101.6

 

($21.7
)
 

$1,917.8


The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2013 by Entergy were as follows:
 
Liabilities as
of December 31,
2012
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
 of December 31,
2013
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$680.7

 

$43.1

 

$—

 

$—

 

$723.8

Entergy Gulf States Louisiana

$380.8

 

$22.3

 

$—

 

$—

 

$403.1

Entergy Louisiana

$418.1

 

$21.6

 

$39.4

 

$—

 

$479.1

Entergy Mississippi

$6.0

 

$0.4

 

$—

 

$—

 

$6.4

Entergy New Orleans

$2.2

 

$0.1

 

$—

 

$—

 

$2.3

Entergy Texas

$4.1

 

$0.2

 

$—

 

$—

 

$4.3

System Energy

$478.4

 

$35.5

 

$102.3

 

$—

 

$616.2

Entergy Wholesale Commodities

$1,543.3

 

$125.3

 

$38.6

 

($9.0
)
 

$1,698.2
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2014 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$769.9

 

$247.6

River Bend

$637.7

 

($25.5
)
Waterford 3

$383.6

 

$145.5

Grand Gulf

$679.8

 

$80.4

Entergy Wholesale Commodities

$2,899.9

 

$—


Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants. The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2013 are as follows:
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
Utility:
 
 
 
ANO 1 and ANO 2

$710.9

 

$219.1

River Bend

$573.7

 

($28.7
)
Waterford 3

$347.3

 

$128.5

Grand Gulf

$603.9

 

$60.8

Entergy Wholesale Commodities

$2,667.3

 

$—