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No definition available.

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- Definition

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

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No definition available.

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- Definition

The average effective interest rate during the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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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.

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No definition available.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

Amount of credit risk valuation adjustment to derivative liabilities to properly reflect the credit quality of the entity.

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No definition available.

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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.

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

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

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- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Debt - Principal Amount of Long-Term Debt, Net of Discount and Debt Issuance Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2015	Jan. 31, 2010
Long-term Debt
Fair value swap adjustment (see Notes 12 and 13)	$ 9	$ 14
Total	6,703	6,884
Less unamortized debt issuance costs and discounts	56	59
Current portion of long-term debt	149	149
Long-term Debt, Net	$ 6,498	6,676
1 month LIBOR
Long-term Debt
Interest rate	1.57%
Unsecured Debt \| July 2019
Long-term Debt
Interest Rate	1.95%
Principal amount of notes	$ 300	300
Unsecured Debt \| July 2019
Long-term Debt
Interest Rate	5.25%		5.25%	5.25%
Principal amount of notes	$ 300	300
Unsecured Debt \| November 2021
Long-term Debt
Interest Rate	3.10%
Principal amount of notes	$ 250	250
Unsecured Debt \| March 2022
Long-term Debt
Interest Rate	2.80%
Principal amount of notes	$ 1,100	1,100
Unsecured Debt \| December 2023
Long-term Debt
Interest Rate	3.70%
Principal amount of notes	$ 400	400
Unsecured Debt \| March 2024
Long-term Debt
Interest Rate	3.20%
Principal amount of notes	$ 950	950
Unsecured Debt \| March 2027
Long-term Debt
Interest Rate	3.50%
Principal amount of notes	$ 1,300	1,300
Unsecured Debt \| December 2043
Long-term Debt
Interest Rate	4.80%
Principal amount of notes	$ 400	400
Unsecured Debt \| April 2047
Long-term Debt
Interest Rate	4.35%
Principal amount of notes	$ 1,000	1,000
Unsecured Debt \| April 2020
Long-term Debt
Principal amount of notes	$ 694	$ 870
Unsecured Debt \| 1 month LIBOR \| April 2020
Long-term Debt
Basis spread on variable rate	1.25%