Increase in percentage points added to the reference rate to compute the variable rate on the debt instrument.

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.

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- Definition

The average effective interest rate during the reporting period.

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- Definition

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

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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

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

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

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

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- Definition

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

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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.

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- Definition

Amount of noncurrent assets classified as other.

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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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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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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.

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Debt (Components of Debt) (Details) - USD ($)		1 Months Ended				12 Months Ended
Debt (Components of Debt) (Details) - USD ($)	Apr. 26, 2018	Dec. 31, 2018	Apr. 30, 2018	Sep. 30, 2017	Jul. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2018	Jan. 31, 2015
Debt Instrument [Line Items]
Debt Instrument		$ 2,342,000,000				$ 2,342,000,000	$ 4,433,000,000
Unamortized Issuance Expense		(23,000,000)				(23,000,000)	(40,000,000)
Unamortized Debt Discount		(1,000,000)				(1,000,000)	(2,000,000)
Total		2,318,000,000				2,318,000,000	4,391,000,000
Other long-term assets		185,000,000				185,000,000	240,000,000
Repayments of long-term debt						2,095,000,000	1,139,000,000	$ 1,175,000,000
Payments on revolving credit facility						1,983,000,000		$ 3,268,000,000
2016 Credit Facility [Member]
Debt Instrument [Line Items]
Unamortized Issuance Expense		$ (4,000,000)				$ (4,000,000)
Long-term Debt [Member] \| 2018 Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate		3.92%				3.92%
Credit facility, maturity date						Apr. 26, 2023
Other long-term assets		$ 11,000,000				$ 11,000,000
Payments on revolving credit facility			$ 1,191,000,000
Long-term Debt [Member] \| 2016 Credit Facility [Member]
Debt Instrument [Line Items]
Unamortized Issuance Expense	$ (4,000,000)
Long-term Debt [Member] \| 2016 Term Loan due December 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument							1,191,000,000
Unamortized Issuance Expense							(8,000,000)
Total							$ 1,183,000,000
Variable interest rate							3.98%
Debt, maturity date							Dec. 31, 2020
Repayments of long-term debt	$ 1,191,000,000		$ 1,191,000,000
Long-term Debt [Member] \| 4.05% Senior Notes due January 2020 [Member]
Debt Instrument [Line Items]
Stated interest rate		4.05%				4.05%
Debt, maturity date						Jan. 31, 2020
Senior Notes [Member]
Debt Instrument [Line Items]
Repayments of long-term debt		$ 900,000,000			$ 700,000,000
Senior Notes [Member] \| 4.05% Senior Notes due January 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument		52,000,000				$ 52,000,000	$ 92,000,000
Total		$ 52,000,000				$ 52,000,000	$ 92,000,000
Stated interest rate		4.05%			5.80%	4.05%	4.05%		5.30%	4.05%
Debt, maturity date						Jan. 31, 2020	Jan. 31, 2020
Repayments of long-term debt		$ 40,000,000
Senior Notes [Member] \| 4.05% Senior Notes due January 2020 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate					6.05%
Senior Notes [Member] \| 4.10% Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument		213,000,000				$ 213,000,000	$ 1,000,000,000
Unamortized Issuance Expense		(1,000,000)				(1,000,000)	(7,000,000)
Total		$ 212,000,000				$ 212,000,000	$ 993,000,000
Stated interest rate		4.10%				4.10%	4.10%
Debt, maturity date						Mar. 31, 2022	Mar. 31, 2022
Repayments of long-term debt		$ 787,000,000
Senior Notes [Member] \| 4.95% Senior Notes due January 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument		927,000,000				$ 927,000,000	$ 1,000,000,000
Unamortized Issuance Expense		(7,000,000)				(7,000,000)	(8,000,000)
Unamortized Debt Discount		(1,000,000)				(1,000,000)	(2,000,000)
Total		$ 919,000,000				$ 919,000,000	$ 990,000,000
Stated interest rate		4.95%			6.70%	4.95%	4.95%		6.20%	4.95%
Debt, maturity date						Jan. 31, 2025	Jan. 31, 2025
Repayments of long-term debt		$ 73,000,000
Senior Notes [Member] \| 4.95% Senior Notes due January 2025 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Stated interest rate					6.95%
Senior Notes [Member] \| 7.50% Senior Notes due April 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument		650,000,000				$ 650,000,000	$ 650,000,000
Unamortized Issuance Expense		(8,000,000)				(8,000,000)	(10,000,000)
Total		$ 642,000,000				$ 642,000,000	$ 640,000,000
Stated interest rate		7.50%		7.50%		7.50%	7.50%
Debt, maturity date						Apr. 30, 2026	Apr. 30, 2026
Senior Notes [Member] \| 7.75% Senior Notes due October 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument		$ 500,000,000				$ 500,000,000	$ 500,000,000
Unamortized Issuance Expense		(7,000,000)				(7,000,000)	(7,000,000)
Total		$ 493,000,000				$ 493,000,000	$ 493,000,000
Stated interest rate		7.75%		7.75%		7.75%	7.75%
Debt, maturity date						Oct. 31, 2027	Oct. 31, 2027
Senior Notes [Member] \| 2020 Senior Notes [Member]
Debt Instrument [Line Items]
Repayments of long-term debt				$ 758,000,000
Over LIBOR [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Increase in basis spread					1.75%