Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM format.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

The average effective interest rate during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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.

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- Definition

Amount, after accumulated amortization, of debt discount.

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-Publisher FASB
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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

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The effective interest rate at the end of the reporting period.

+ References

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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 (Components Of Debt) (Details) - USD ($)	1 Months Ended	6 Months Ended		12 Months Ended
Debt (Components Of Debt) (Details) - USD ($)	Jul. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Jan. 31, 2015
Debt Instrument [Line Items]
Debt Instrument		$ 5,807,000,000		$ 4,733,000,000
Unamortized Issuance Cost		(36,000,000)		(24,000,000)
Unamortized Debt Discount		(3,000,000)		(4,000,000)
Total		5,768,000,000		4,705,000,000
Payments on long-term debt			$ 500,000,000
Short-term Debt [Member]
Debt Instrument [Line Items]
Debt Instrument		1,000,000		1,000,000
Unamortized Issuance Cost
Unamortized Debt Discount
Total		1,000,000		1,000,000
Short-term Debt [Member] \| 7.15% Senior Notes due June 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument		1,000,000		1,000,000
Unamortized Issuance Cost
Unamortized Debt Discount
Total		$ 1,000,000		$ 1,000,000
Stated interest rate		7.15%		7.15%
Maturity date, month and year		2018-06		2018-06
Long-term Debt [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 5,806,000,000		$ 4,732,000,000
Unamortized Issuance Cost		(36,000,000)		(24,000,000)
Unamortized Debt Discount		(3,000,000)		(4,000,000)
Total		5,767,000,000		4,704,000,000
Long-term Debt [Member] \| Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument				116,000,000
Total				$ 116,000,000
Credit facility, variable interest rate				1.886%
Credit facility, maturity date				Dec. 01, 2018
Long-term Debt [Member] \| 7.35% Senior Notes due October 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument		15,000,000		$ 15,000,000
Unamortized Issuance Cost
Unamortized Debt Discount
Total		$ 15,000,000		$ 15,000,000
Stated interest rate		7.35%		7.35%
Maturity date, month and year		2017-10		2017-10
Long-term Debt [Member] \| 7.125% Senior Notes due October 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 25,000,000		$ 25,000,000
Unamortized Issuance Cost
Unamortized Debt Discount
Total		$ 25,000,000		$ 25,000,000
Stated interest rate		7.125%		7.125%
Maturity date, month and year		2017-10		2017-10
Long-term Debt [Member] \| 3.3% Senior Notes due January 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 350,000,000		$ 350,000,000
Unamortized Issuance Cost		(1,000,000)		(2,000,000)
Unamortized Debt Discount
Total		$ 349,000,000		$ 348,000,000
Stated interest rate		3.30%		3.30%	3.30%
Maturity date, month and year		2018-01		2018-01
Long-term Debt [Member] \| 7.5% Senior Notes due February 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 600,000,000		$ 600,000,000
Unamortized Issuance Cost		(1,000,000)		(2,000,000)
Unamortized Debt Discount
Total		$ 599,000,000		$ 598,000,000
Stated interest rate		7.50%		7.50%
Maturity date, month and year		2018-02		2018-02
Long-term Debt [Member] \| 7.15% Senior Notes due June 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 25,000,000		$ 26,000,000
Unamortized Issuance Cost
Unamortized Debt Discount
Total		$ 25,000,000		$ 26,000,000
Stated interest rate		7.15%		7.15%
Maturity date, month and year		2018-06		2018-06
Long-term Debt [Member] \| 4.05% Senior Notes due January 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 850,000,000		$ 850,000,000
Unamortized Issuance Cost		(5,000,000)		(5,000,000)
Unamortized Debt Discount				(1,000,000)
Total		$ 845,000,000		$ 844,000,000
Stated interest rate		4.05%		4.05%	4.05%
Maturity date, month and year		2020-01		2020-01
Long-term Debt [Member] \| 4.10% Senior Notes due March 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 1,000,000,000		$ 1,000,000,000
Unamortized Issuance Cost		(5,000,000)		(5,000,000)
Unamortized Debt Discount		(1,000,000)		(1,000,000)
Total		$ 994,000,000		$ 994,000,000
Stated interest rate		4.10%		4.10%
Maturity date, month and year		2022-03		2022-03
Long-term Debt [Member] \| 4.95% Senior Notes due January 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 1,000,000,000		$ 1,000,000,000
Unamortized Issuance Cost		(7,000,000)		(7,000,000)
Unamortized Debt Discount		(2,000,000)		(2,000,000)
Total		$ 991,000,000		$ 991,000,000
Stated interest rate		4.95%		4.95%	4.95%
Maturity date, month and year		2025-01		2025-01
Long-term Debt [Member] \| Term Loan due November 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 750,000,000		$ 750,000,000
Unamortized Issuance Cost		(6,000,000)		(3,000,000)
Unamortized Debt Discount
Total		$ 744,000,000		$ 747,000,000
Variable interest rate		2.93%		1.775%
Maturity date, month and year		2018-11		2018-11
Long-term Debt [Member] \| Term Loan due December 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 1,191,000,000
Unamortized Issuance Cost		(11,000,000)
Unamortized Debt Discount
Total		$ 1,180,000,000
Variable interest rate		2.94%
Maturity date, month and year		2020-12
Subsequent Event [Member] \| Long-term Debt [Member] \| 3.3% Senior Notes due January 2018 [Member]
Debt Instrument [Line Items]
Payments on long-term debt	$ 312,000,000
Subsequent Event [Member] \| Long-term Debt [Member] \| 7.5% Senior Notes due February 2018 [Member]
Debt Instrument [Line Items]
Payments on long-term debt	388,000,000
Subsequent Event [Member] \| Long-term Debt [Member] \| Term Loan due November 2018 [Member]
Debt Instrument [Line Items]
Payments on long-term debt	$ 375,000,000