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The amount that the arbitration panel issued a partial award related to tangible assets to be included in the conveyance price related to Kerr Dam.

+ References

No definition available.

+ Details

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- Definition

The portion of the Kerr Dam arbitration amount related to environmental mitigation costs that the company is asking to be included in the conveyance price. Arbitration decision to come at a later date.

+ References

No definition available.

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- Definition

The proportionate share of interest (percent) in a jointly owned leasehold interest of a utility plant.

+ References

No definition available.

+ Details

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- Definition

The proportionate share of interest (percent) in a jointly owned leasehold interest of a utility plant.

+ References

No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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- Definition

Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

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- Definition

Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

+ Details

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Leases (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2014
Lessee Transactions [Line Items]
Percentage of leasehold interest in Colstrip Units 1 and 2		50.00%
Percentage of leasehold interest in Colstrip Unit 3		30.00%
Operating Leases - Kerr Dam (Numeric) [Abstract]
Amount to be included in the Kerr Dam conveyance price for tangible assets decided by arbitrator				$ 17
Amount requested to be included in Kerr Dam conveyance price for environmental mitigation costs to be decided by arbitrator				32
Rent - Operating Leases (Details) [Abstract]
Operating leases, rent expense	111	116	109
Operating leases, future minimum rental payments due (Details) [Abstract]
2014	59
2015	47
2016	23
2017	18
2018	12
Thereafter	42
Total	201
PPL Energy Supply LLC [Member]
Lessee Transactions [Line Items]
Percentage of leasehold interest in Colstrip Units 1 and 2		50.00%
Percentage of leasehold interest in Colstrip Unit 3		30.00%
Operating Leases - Kerr Dam (Numeric) [Abstract]
Amount to be included in the Kerr Dam conveyance price for tangible assets decided by arbitrator				17
Amount requested to be included in Kerr Dam conveyance price for environmental mitigation costs to be decided by arbitrator				32
Rent - Operating Leases (Details) [Abstract]
Operating leases, rent expense	55	62	84
Operating leases, future minimum rental payments due (Details) [Abstract]
2014	31
2015	25
2016	11
2017	10
2018	3
Thereafter	3
Total	83
LG And E And KU Energy LLC [Member]
Rent - Operating Leases (Details) [Abstract]
Operating leases, rent expense	18	18	18
Operating leases, future minimum rental payments due (Details) [Abstract]
2014	16
2015	13
2016	9
2017	6
2018	6
Thereafter	29
Total	79
Louisville Gas And Electric Co [Member]
Rent - Operating Leases (Details) [Abstract]
Operating leases, rent expense	7	7	7
Operating leases, future minimum rental payments due (Details) [Abstract]
2014	6
2015	5
2016	4
2017	2
2018	2
Thereafter	12
Total	31
Kentucky Utilities Co [Member]
Rent - Operating Leases (Details) [Abstract]
Operating leases, rent expense	10	10	10
Operating leases, future minimum rental payments due (Details) [Abstract]
2014	10
2015	8
2016	5
2017	4
2018	3
Thereafter	15
Total	$ 45