Average discount rate of notes receivable.

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Exclusion from EBITDA for Restructuring Charges

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Interest Margin above LIBOR, Maximum.

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Interest Margin above LIBOR, Minimum.

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Legal payments remaining to be excluded from calculation of consolidated EBITDA

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Exclusion of litigation payments and any debt Issued to fund tax deficiency payments

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Maximum amount of proceeds from sale of finance receivables.

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Maximum leverage ratio permitted by revolving credit facility agreement.

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Restructuring charges remaining to be excluded from calculation of consolidated EBITDA.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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

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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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Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that have been derecognized. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets.

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Gross amount of debt extinguished.

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No definition available.

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

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No definition available.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Fair value of the amount outstanding under the credit facility.

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The effective interest rate during the reporting period.

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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.

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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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Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable.

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Weighted average interest rate of short-term debt outstanding.

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Borrowings and Credit Arrangements (Details) $ in Millions, ¥ in Billions	2 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2017 JPY (¥)	Aug. 04, 2017 USD ($)	Jun. 30, 2017 USD ($)	Apr. 10, 2015 USD ($)
Debt Instrument [Line Items]
Total debt	$ 5,682		$ 5,682	$ 5,484
Line of Credit Facility, Maximum Borrowing Capacity		$ 400		300
Line of Credit Facility, Fair Value of Amount Outstanding	0		0	$ 60
Maximum amount of proceeds from sale of finance receivables	449		$ 449
Average interest rate of de-recognized receivables			1.60%	1.80%
De-recognized receivables	167		$ 167	$ 152
Long-term Debt	(4,416)		(4,416)	(5,420)
Letters of Credit Outstanding, Amount	$ 37		$ 37	$ 44
January 2017 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.125%		5.125%	5.125%	5.125%
Long-term Debt	$ 0		$ 0	$ (250)
October 2018 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.65%		2.65%	2.65%	2.65%
Long-term Debt	$ (600)		$ (600)	$ (600)
January 2020 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.00%		6.00%	6.00%	6.00%
Long-term Debt	$ (850)		$ (850)	$ (850)
May 2020 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.85%		2.85%	2.85%	2.85%
Long-term Debt	$ (600)		$ (600)	$ (600)
May 2022 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.375%		3.375%	3.375%	3.375%
Long-term Debt	$ (500)		$ (500)	$ (500)
May 2025 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.85%		3.85%	3.85%	3.85%
Long-term Debt	$ (750)		$ (750)	$ (750)
October 2023 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%		4.125%	4.125%	4.125%
Long-term Debt	$ (450)		$ (450)	$ (450)
November 2035 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.25%		6.25%	6.25%	6.25%
Long-term Debt	$ (350)		$ (350)	$ (350)
January 2040 Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.375%		7.375%	7.375%	7.375%
Long-term Debt	$ (300)		$ (300)	$ (300)
2018 Term Loan [Member] [Member]
Debt Instrument [Line Items]
Long-term Debt	0		0	(150)
2020 Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt	0		0	(600)
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	(4,400)		(4,400)	(4,650)
Unsecured Term Loan Facility [Member]
Debt Instrument [Line Items]
Long-term Debt				(750)
Premiums, accelerated amortization of debt issuance costs & investor discount costs [Member]
Debt Instrument [Line Items]
Long-term Debt	(7)		(7)	(8)
Securities Financing Transaction, Cost [Member]
Debt Instrument [Line Items]
Long-term Debt	(20)		(20)	(24)
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Long-term Debt	(42)		(42)	(51)
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	(1)		(1)	(1)
Line of Credit [Member]
Debt Instrument [Line Items]
Commercial Paper	2,250		2,250				$ 2,000
Senior Notes [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount		$ 250
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Debt Instrument [Line Items]
Commercial Paper	$ 1,260		$ 1,260
Commercial Paper [Member]
Debt Instrument [Line Items]
Short-term Debt, Weighted Average Interest Rate	1.65%		1.65%		1.65%
the 2017 Facility [Member]
Debt Instrument [Line Items]
Exclusion from EBITDA for Restructuring Charges						$ 500
Line of Credit Facility, Maximum Borrowing Capacity						$ 2,250
Interest Margin above LIBOR, Minimum						0.90%
Interest Margin above LIBOR, Maximum						1.50%
Line of Credit Facility, Interest Rate During Period	1.10%
Line of Credit Facility, Commitment Fee Percentage	0.15%
Restructuring charges remaining to be excluded from calculation of consolidated EBITDA	$ 476		$ 476
Litigation and Debt Exclusion from EBITDA						$ 2,624
Legal payments remaining to be excluded from calculation of consolidated EBITDA	2,358		2,358
the 2015 Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity								$ 2,000
Uncommitted Credit Facilities With A Commercial Japanese Banks [Member]
Debt Instrument [Line Items]
Maximum amount of proceeds from sale of finance receivables	196		196		¥ 22.0
De-recognized receivables	$ 162		$ 162	$ 149
Average discounted rates of notes receivables	1.30%		1.30%	1.60%	1.30%
Current Requirement [Member]
Debt Instrument [Line Items]
Maximum Leverage Ratio	3.50		3.50		3.50
Actual, Covenant [Member]
Debt Instrument [Line Items]
Maximum Leverage Ratio	2.3		2.3		2.3