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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2016
Regulatory Assets [Line Items]  
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.

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, 2016 and 2015 are as follows:

 
2016
 
2015
 
Decommissioning Trust Fair Values
 
Regulatory Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$834.7

 
$316.3
 

$771.3

 

$280.3

River Bend

$712.8

 
($28.4)
 

$651.7

 

($26.8
)
Waterford 3

$427.9

 
$172.8
 

$390.6

 

$158.5

Grand Gulf

$780.5

 
$142.5
 

$701.5

 

$108.6

Entergy Wholesale Commodities

$2,968.0

 
$—
 

$2,834.9

 

$—
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.

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, 2016 and 2015 are as follows:

 
2016
 
2015
 
Decommissioning Trust Fair Values
 
Regulatory Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$834.7

 
$316.3
 

$771.3

 

$280.3

River Bend

$712.8

 
($28.4)
 

$651.7

 

($26.8
)
Waterford 3

$427.9

 
$172.8
 

$390.6

 

$158.5

Grand Gulf

$780.5

 
$142.5
 

$701.5

 

$108.6

Entergy Wholesale Commodities

$2,968.0

 
$—
 

$2,834.9

 

$—
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
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, 2016 and 2015 are as follows:

 
2016
 
2015
 
Decommissioning Trust Fair Values
 
Regulatory Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$834.7

 
$316.3
 

$771.3

 

$280.3

River Bend

$712.8

 
($28.4)
 

$651.7

 

($26.8
)
Waterford 3

$427.9

 
$172.8
 

$390.6

 

$158.5

Grand Gulf

$780.5

 
$142.5
 

$701.5

 

$108.6

Entergy Wholesale Commodities

$2,968.0

 
$—
 

$2,834.9

 

$—
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
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,
 
2016
 
2015
 
(In Millions)
Entergy Arkansas
$128.5
 
$85.7
Entergy Louisiana
($53.9)
 
($68.3)
Entergy Mississippi
$82.0
 
$77.5
Entergy New Orleans
$40.1
 
$29.4
Entergy Texas
$33.5
 
$25.8
System Energy
$69.7
 
$54.8
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2016 and 2015 by Entergy were as follows:
 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31, 2016 (a)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

Entergy Louisiana

$1,027.9

 

$—

 

$54.8

 

$—

 

$—

 

$1,082.7

Entergy Mississippi

$8.3

 

$—

 

$0.4

 

$—

 

$—

 

$8.7

Entergy New Orleans

$2.7

 

$—

 

$0.2

 

$—

 

$—

 

$2.9

Entergy Texas

$6.1

 

$—

 

$0.4

 

$—

 

$—

 

$6.5

System Energy

$803.4

 

$—

 

$50.8

 

$—

 

$—

 

$854.2

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$28.0

 

$—

 

$2.2

 

$10.1

 

($2.4
)
 

$37.9

FitzPatrick

$—

 

$696.2

(b)

$18.1

 

$—

 

$—

 

$714.3

Indian Point 1

$197.9

 

$—

 

$17.1

 

($0.3
)
 

($7.1
)
 

$207.6

Indian Point 2

$390.1

 

$—

 

$33.0

 

$230.0

 

$—

 

$653.1

Indian Point 3

$—

 

$466.3

(b)

$12.1

 

$162.7

 

$—

 

$641.1

Palisades

$342.0

 

$—

 

$29.5

 

$128.8

 

$—

 

$500.3

Pilgrim

$551.2

 

$—

 

$48.4

 

$3.2

 

($0.5
)
 

$602.3

Vermont Yankee

$560.0

 

$—

 

$39.3

 

$—

 

($128.8
)
 

$470.5

Other (c)

$0.3

 

$—

 

$—

 

$—

 

$—

 

$0.3


 
Liabilities as
of December 31,
2014
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as of December 31,
2015
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$818.4

 

$3.5

(c)

$50.4

 

$—

 

$—

 

$872.3

Entergy Louisiana

$950.3

 

$1.9

(c)

$51.0

 

$24.7

 

$—

 

$1,027.9

Entergy Mississippi

$6.8

 

$1.1

(c)

$0.4

 

$—

 

$—

 

$8.3

Entergy New Orleans

$2.5

 

$—

 

$0.2

 

$—

 

$—

 

$2.7

Entergy Texas

$4.6

 

$1.4

(c)

$0.3

 

($0.2
)
 

$—

 

$6.1

System Energy

$757.9

 

$—

 

$48.0

 

($2.5
)
 

$—

 

$803.4

Entergy Wholesale Commodities:


 


 


 


 


 


Big Rock Point

$27.8

 

$—

 

$2.2

 

$—

 

($2.0
)
 

$28.0

Indian Point 1

$188.9

 

$—

 

$16.3

 

$—

 

($7.3
)
 

$197.9

Indian Point 2

$359.7

 

$—

 

$30.4

 

$—

 

$—

 

$390.1

Palisades

$352.0

 

$—

 

$25.2

 

($35.2
)
 

$—

 

$342.0

Pilgrim

$383.1

 

$—

 

$33.3

 

$134.8

 

$—

 

$551.2

Vermont Yankee

$606.3

 

$—

 

$46.1

 

$—

 

($92.4
)
 

$560.0

Other (c)

$—

 

$—

 

$0.3

 

$—

 

$—

 

$0.3



(a)
Entergy Wholesale Commodities includes $714.3 million of asset retirement obligation for FitzPatrick which is classified as held for sale within other non-current liabilities on the consolidated balance sheet. See Note 14 to the financial statements for discussion of the agreement to sell the FitzPatrick plant to Exelon.
(b)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
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, 2016 and 2015 are as follows:

 
2016
 
2015
 
Decommissioning Trust Fair Values
 
Regulatory Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$834.7

 
$316.3
 

$771.3

 

$280.3

River Bend

$712.8

 
($28.4)
 

$651.7

 

($26.8
)
Waterford 3

$427.9

 
$172.8
 

$390.6

 

$158.5

Grand Gulf

$780.5

 
$142.5
 

$701.5

 

$108.6

Entergy Wholesale Commodities

$2,968.0

 
$—
 

$2,834.9

 

$—