Debt Instrument, Contingent Interest Rate Variance

No definition available.

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- Definition

Debt Instrument, Covenant Compliance, Maximum Ratio of Indebtedness to EBITDA

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Carrying amount at the balance sheet date of borrowings from a bank, not elsewhere enumerated in the taxonomy, with a maturity within one year (or within one operating cycle if longer) from the date of borrowing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Debt Credit Agreement (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
Debt Credit Agreement (Details) - USD ($) $ in Millions	May. 17, 2011	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2011
Line of Credit Facility [Line Items]
Proceeds from Issuance of Long-term Debt	$ 1,000
Loss on extinguishment of debt		$ (34)		$ (58)	$ (34)	$ (39)
Unamortized debt issuance costs				12	17
Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Payments of debt issuance costs			$ 14
Loss on extinguishment of debt					(1)	$ (39)
Unamortized debt issuance costs				$ 13
Amended and Restated Credit Agreement \| Minimum
Line of Credit Facility [Line Items]
Contingent change in applicable rate				0.00%
Amended and Restated Credit Agreement \| Maximum
Line of Credit Facility [Line Items]
Contingent change in applicable rate				2.25%
Amended and Restated Credit Agreement \| Secured Debt
Line of Credit Facility [Line Items]
Letters of Credit Issued				$ 8
Tranche A Term Loan, Due 2018 \| Loans Payable
Line of Credit Facility [Line Items]
Unamortized debt issuance costs				1	2
Borrowings				399	$ 398
Tranche A Term Loan, Due 2018 \| JPMorgan Chase Bank, N.A.
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase, Additional Borrowings							$ 574
Tranche A Term Loan, Due 2018 \| JPMorgan Chase Bank, N.A. \| Loans Payable
Line of Credit Facility [Line Items]
Borrowings				$ 400
Tranche A Term Loan, Due 2018 \| JPMorgan Chase Bank, N.A. \| Loans Payable \| LIBOR
Line of Credit Facility [Line Items]
Basis spread of variable rate				1.00%	1.00%
Rates effective				1.3125%
Tranche A Term Loan, Due 2018 \| JPMorgan Chase Bank, N.A. \| Loans Payable \| Administrative Agents Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread of variable rate				0.00%	0.00%
Tranche A Term Loan, Due 2018 \| Loans Payable \| JPMorgan Chase Bank, N.A.
Line of Credit Facility [Line Items]
Credit Agreement on Senior Secured Facilities			$ 575
Revolver, Due 2018 \| JPMorgan Chase Bank, N.A.
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase, Additional Borrowings	$ 2,400						$ 1,300
Revolver, Due 2018 \| Revolving Credit Facility \| JPMorgan Chase Bank, N.A.
Line of Credit Facility [Line Items]
Credit Agreement on Senior Secured Facilities				$ 1,500
Unamortized debt issuance costs				$ 12	$ 17
Revolver, Due 2018 \| Revolving Credit Facility \| JPMorgan Chase Bank, N.A. \| LIBOR
Line of Credit Facility [Line Items]
Basis spread of variable rate				1.00%	1.00%
Revolver, Due 2018 \| Revolving Credit Facility \| JPMorgan Chase Bank, N.A. \| Administrative Agents Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread of variable rate				0.00%	0.00%
Revolver, Due 2018 \| Revolving Credit Facility \| JPMorgan Chase Bank, N.A. \| Line of Credit \| Administrative Agents Alternate Base Rate
Line of Credit Facility [Line Items]
Borrowings				$ 0
Rates effective				0.00%
Credit Agreement \| Secured Debt \| JPMorgan Chase Bank, N.A.
Line of Credit Facility [Line Items]
Credit Agreement on Senior Secured Facilities								$ 3,000
Covenant Compliance, Maximum Ratio of Indebtedness to EBITDA				275.00%