Property, Plant, And Equipment	3 Months Ended
Mar. 31, 2015
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy Arkansas [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy Gulf States Louisiana [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy Louisiana [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy Mississippi [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy New Orleans [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
Entergy Texas [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.
System Energy [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.

Property, Plant And Equipment

PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

Construction Expenditures in Accounts Payable

Construction expenditures included in accounts payable at March 31, 2015 are $147 million for Entergy, $31.5 million for Entergy Arkansas, $26.9 million for Entergy Gulf States Louisiana, $17 million for Entergy Louisiana, $8.3 million for Entergy Mississippi, $0.1 million for Entergy New Orleans, $9.1 million for Entergy Texas, and $10.3 million for System Energy. Construction expenditures included in accounts payable at December 31, 2014 are $209 million for Entergy, $37.3 million for Entergy Arkansas, $23.4 million for Entergy Gulf States Louisiana, $48 million for Entergy Louisiana, $7.8 million for Entergy Mississippi, $0.9 million for Entergy New Orleans, $24.1 million for Entergy Texas, and $7.7 million for System Energy.