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Number of Export Credit Facilities

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

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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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Face (par) amount of debt instrument at time of issuance.

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

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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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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Face (par) amount of the original debt instrument that was repurchased.

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The cash inflow from borrowing by issuing commercial paper.

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

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Per share or per unit amount of equity securities issued.

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Debt - Narrative (Details)	1 Months Ended					3 Months Ended	9 Months Ended
Debt - Narrative (Details)	Aug. 31, 2020 USD ($) $ / shares shares	Jul. 31, 2020 USD ($) tranche	Jun. 30, 2020 USD ($) tranche	Apr. 30, 2020 USD ($) shares $ / shares	Feb. 29, 2020 USD ($)	Aug. 31, 2020 USD ($) $ / shares	Aug. 31, 2020 USD ($) day shares $ / shares	Aug. 31, 2019 USD ($)	Oct. 08, 2020 USD ($) creditFacility	Sep. 30, 2020 USD ($)	Jul. 31, 2020 EUR (€) tranche	Jun. 30, 2020 EUR (€) tranche	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Current unsecured debt	$ 3,000,000,000.0					$ 3,000,000,000.0	$ 3,000,000,000.0
Proceeds from short term debt							525,000,000
Repayments of short term debt							192,000,000
Long-term debt	$ 22,532,000,000					22,532,000,000	22,532,000,000
Loss on extinguishment of debt							$ (224,000,000)	$ 0
Debt instrument, convertible, conversion ratio							3.0
Senior Notes 3.95% due in 2020 and Senior Notes 1.625% due in 2021
Debt Instrument [Line Items]
Loss on extinguishment of debt						$ 5,000,000
Senior Notes 3.95% due in 2020
Debt Instrument [Line Items]
Debt instrument, interest rate (percent)	4.00%					4.00%	4.00%
Repurchase amount	$ 86,000,000					$ 86,000,000	$ 86,000,000
Debt instrument, repurchased face amount	$ 700,000,000					$ 700,000,000	$ 700,000,000
Senior Notes 1.625% due in 2021
Debt Instrument [Line Items]
Debt instrument, interest rate (percent)	1.60%					1.60%	1.60%
Repurchase amount	$ 123,000,000					$ 123,000,000	$ 123,000,000
Debt instrument, repurchased face amount	555,000,000					555,000,000	555,000,000
Export credit facilities with Financial Covenant waivers \| Subsequent Event
Debt Instrument [Line Items]
Long-term debt									$ 1,300,000,000
Number of export credit facilities \| creditFacility									3
Export credit facility \| Export credit facility due 2032
Debt Instrument [Line Items]
Debt instrument, face amount													$ 823,000,000
Export credit facility \| Export credit facility due 2033 \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument, face amount										$ 610,000,000
Sterling-denominated floating rate bank loan \| Sterling-denominated floating rate bank loan due 2025
Debt Instrument [Line Items]
Proceeds from long-term debt					$ 452,000,000
Euro-denominated fixed rate bank loan \| Euro-denominated fixed rate bank loan due 2021
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 166,000,000
Euro-denominated fixed rate bank loan \| Euro-denominated fixed rate bank loan due 2022
Debt Instrument [Line Items]
Proceeds from long-term debt		$ 337,000,000
Secured \| Senior Secured Notes due 2023
Debt Instrument [Line Items]
Debt instrument, face amount				$ 4,000,000,000.0
Debt instrument, interest rate (percent)				11.50%
Long-term debt	27,900,000,000					27,900,000,000	$ 27,900,000,000
Secured \| Senior Secured Notes due 2023 \| Maximum \| On or After January 1, 2023
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage (less than 98%)							101.00%
Secured \| Senior Secured Term Loan Facility due 2025
Debt Instrument [Line Items]
Debt instrument, face amount			$ 2,800,000,000
Number of tranches \| tranche			2									2
Secured \| Senior Secured Term Loan Facility due 2025, Tranche One
Debt Instrument [Line Items]
Debt instrument, face amount			$ 1,900,000,000
Secured \| Senior Secured Term Loan Facility due 2025, Tranche One \| LIBOR
Debt Instrument [Line Items]
Debt instrument, floor rate on variable rate (percentage)			1.00%
Debt instrument, variable rate (percentage)			7.50%
Secured \| Senior Secured Term Loan Facility due 2025, Tranche Two
Debt Instrument [Line Items]
Debt instrument, face amount \| €												€ 800,000,000
Secured \| Senior Secured Term Loan Facility due 2025, Tranche Two \| Eurodollar
Debt Instrument [Line Items]
Debt instrument, floor rate on variable rate (percentage)			0.00%
Debt instrument, variable rate (percentage)			7.50%
Secured \| Senior Secured Term Loan Facility due 2026
Debt Instrument [Line Items]
Debt instrument, face amount		$ 1,300,000,000
Number of tranches \| tranche		2									2
Secured \| Senior Secured Term Loan Facility due 2026, Tranche One
Debt Instrument [Line Items]
Debt instrument, face amount		$ 775,000,000
Debt instrument, interest rate (percent)		10.50%									10.50%
Secured \| Senior Secured Term Loan Facility due 2026, Tranche Two
Debt Instrument [Line Items]
Debt instrument, face amount \| €											€ 425,000,000
Debt instrument, interest rate (percent)		10.10%									10.10%
Secured \| Senior Secured Term Loan Facility due 2027
Debt Instrument [Line Items]
Debt instrument, face amount	$ 900,000,000					$ 900,000,000	$ 900,000,000
Debt instrument, interest rate (percent)	9.90%					9.90%	9.90%
Convertible \| Senior Convertible Notes due 2023
Debt Instrument [Line Items]
Debt instrument, face amount				$ 2,000,000,000.0
Debt instrument, interest rate (percent)				5.75%
Long-term debt	$ 954,000,000					$ 954,000,000	$ 954,000,000
Debt instrument, convertible, number of shares \| shares				100
Conversion rate, amount				$ 1,000
Debt instrument, conversion price (in dollars per share) \| $ / shares				$ 10
Repurchase amount	886,000,000					886,000,000	886,000,000
Loss on extinguishment of debt	(224,000,000)
Debt instrument, convertible, carrying amount	286,000,000					286,000,000	286,000,000
Debt instrument, convertible, carrying amount, after partial repurchase	$ 0					$ 0	$ 0
Debt instrument, effective interest rate (percentage)	12.90%					12.90%	12.90%
Convertible \| Senior Convertible Notes due 2023 \| Common Stock
Debt Instrument [Line Items]
Shares issued (in shares) \| shares	99,200,000
Shares issued, price per share (in dollars per share) \| $ / shares	$ 14.02					$ 14.02	$ 14.02
Convertible \| Senior Convertible Notes due 2023 \| Measurement Period
Debt Instrument [Line Items]
Conversion rate, amount							$ 1,000
Convertible threshold trading days \| day							5
Convertible threshold consecutive trading days \| day							5
Convertible \| Senior Convertible Notes due 2023 \| On or After January 1, 2023
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage (less than 98%)							100.00%
Debt instrument, convertible, number of shares \| shares							100
Conversion rate, amount							$ 1,000
Convertible \| Senior Convertible Notes due 2023 \| Minimum \| Before January 1, 2023
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage (less than 98%)							130.00%
Convertible threshold trading days \| day							20
Convertible threshold consecutive trading days \| day							30
Convertible \| Senior Convertible Notes due 2023 \| Minimum \| Measurement Period
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage (less than 98%)							98.00%
Commercial paper
Debt Instrument [Line Items]
Current unsecured debt	$ 314,000,000					$ 314,000,000	$ 314,000,000
Euro-denominated commercial paper
Debt Instrument [Line Items]
Current unsecured debt	20,000,000					20,000,000	20,000,000
Sterling-denominated commercial paper
Debt Instrument [Line Items]
Current unsecured debt	$ 33,000,000					$ 33,000,000	$ 33,000,000