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Cash and cash equivalents subject to project finance facilities and lease agreements

+ References

No definition available.

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- Definition

The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

+ References

No definition available.

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- Definition

Amount of interest capitalized during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

-URI http://asc.fasb.org/extlink&oid=6504829

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.

+ References

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- Definition

Cash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements.

+ References

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Accounting Policies [Line Items]
Current	$ 244		$ 244		$ 203
Non-current	42		42		69
Total	286		286		272
Cash and cash equivalents subject to project finance facilities and lease agreements	229		229		292
Interest Costs Capitalized	3	9	15	33
Treasury Stock, Value, Acquired, Cost Method			767
Adjustments Related to Tax Withholding for Share-based Compensation			14
Debt Service
Accounting Policies [Line Items]
Current	22		22		11
Non-current	25		25		41
Total	47		47		52
Rent Reserve
Accounting Policies [Line Items]
Current	4		4		3
Non-current	0		0		0
Total	4		4		3
Construction Major Maintenance
Accounting Policies [Line Items]
Current	69		69		35
Non-current	12		12		20
Total	81		81		55
Security Project Insurance
Accounting Policies [Line Items]
Current	149		149		151
Non-current	3		3		6
Total	152		152		157
Other
Accounting Policies [Line Items]
Current	0		0		3
Non-current	2		2		2
Total	$ 2		$ 2		$ 5
Geothermal Properties, Gross [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			13 years
Geothermal Properties, Gross [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			59 years
Property, Plant and Equipment, Other Types [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			3 years
Property, Plant and Equipment, Other Types [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			47 years
Building, Machinery and Equipment, Gross [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			3 years
Building, Machinery and Equipment, Gross [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			47 years