Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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

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

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

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Gross amount of debt extinguished.

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Long-Term Debt and Short-Term Borrowings - Long-Term Debt Maturities (Details) € in Millions, $ in Millions	1 Months Ended				3 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($)	Nov. 30, 2018 EUR (€)	Aug. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($)	Oct. 31, 2017 USD ($)
Debt instrument
Debt repurchases							$ 305
Loss on early debt extinguishment					$ 96
Repayment of debt		€ 500	$ 450			$ 2,100
Debt assumed						$ 2,573
Fixed rate medium term notes repaid June 2017
Debt instrument
Repayment of debt				$ 650
Notes Due 2028
Debt instrument
Debt repurchases							110
Principal amount							$ 330
Interest rate, stated percentage (as a percent)							6.375%
Notes Due 2037
Debt instrument
Debt repurchases							$ 195
Principal amount							$ 750
Interest rate, stated percentage (as a percent)							5.70%
Fixed rate medium term notes repaid June 2019
Debt instrument
Repayment of debt	$ 625