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Additional interest charges for note repurchase premiums and the write-off of unamortized finance fees.

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The percentage points added to the Eurocurrency reference rate to compute the variable rate on the debt instrument.

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Additional default interest rate per annum which will be apply to all obligations owed under the Agreement.

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This element represents the market price of a debt instrument at the balance sheet date.

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No definition available.

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Represents the number of financial maintenance covenants as defined in the Agreement.

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The Total Leverage Ratio, that requires the Company not to exceed a ratio calculated by dividing consolidated total debt, less cash and cash equivalents (“Net Indebtedness”), by consolidated EBITDA, as defined in the Amended Agreement.

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No definition available.

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The maximum Leverage Ratio is subject to an increase.

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

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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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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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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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 of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Amount of long-term debt and capital lease obligations including current maturities.

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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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Repayments of securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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Debt (Details) $ / shares in Units, € in Millions, $ in Millions	1 Months Ended				3 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Nov. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Sep. 30, 2018 EUR (€)	Dec. 31, 2018 USD ($) item	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 EUR (€) item	Dec. 31, 2018 USD ($) item $ / shares	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 USD ($)	Mar. 31, 2017 EUR (€)	Mar. 31, 2017 USD ($)
Debt Instrument
Total long-term debt										$ 5,214		$ 5,132
Less amounts due within one year										33		11
Long-term debt										5,181		5,121
Unused Credit										$ 988
Leverage Ratio \| item									4.5	4.5
Net proceeds, after deducting debt issuance costs						$ 2,511	$ 1,458	$ 1,235
Accounts receivable securitization
Weighted average interest rate, short-term debt (as a percent)									3.97%	3.97%
Maximum
Debt Instrument
Maximum Leverage Ratio may increase \| item						0.5
Maximum Borrowing Capacity										$ 1,910
Prior Agreement
Debt Instrument
Additional interest charges for note repurchase premiums and write-off of unamortized finance fees	$ 11
Amended Agreement
Debt Instrument
Number financial maintenance covenants \| item						1
Term Loan A
Debt Instrument
Total long-term debt										897
Face Value										$ 910
Net proceeds, after deducting debt issuance costs						$ 897
Term Loan A \| Amended Agreement \| Minimum
Debt Instrument
Interest rate margin, Eurocurrency Rate loans (as a percent)									1.00%	1.00%
Interest rate margin, Base Rate loans (as a percent)						0.00%
Term Loan A \| Amended Agreement \| Maximum
Debt Instrument
Interest rate margin, Eurocurrency Rate loans (as a percent)									1.50%	1.50%
Interest rate margin, Base Rate loans (as a percent)						0.50%
Term Loan A
Debt Instrument
Total long-term debt												1,148
Other secured debt
Debt Instrument
Total long-term debt										$ 404
Senior Notes 6.75%, due 2020 (500 million EUR)
Debt Instrument
Total long-term debt									€ 500	$ 570	€ 500	594
Interest rate, stated percentage									6.75%	6.75%
Fair values of fixed rate debt obligations
Principal Amount										$ 571
Indicated Market Price (in dollars per share) \| $ / shares										$ 108.96
Fair Value										$ 622
Senior Notes 4.875%, due 2021 (330 million EUR)
Debt Instrument
Total long-term debt									€ 330	$ 376	€ 330	392
Interest rate, stated percentage									4.875%	4.875%
Fair values of fixed rate debt obligations
Principal Amount										$ 377
Indicated Market Price (in dollars per share) \| $ / shares										$ 107.28
Fair Value										$ 404
Senior Notes 5.00%, due 2022
Debt Instrument
Total long-term debt										$ 497		496
Interest rate, stated percentage									5.00%	5.00%
Fair values of fixed rate debt obligations
Principal Amount										$ 500
Indicated Market Price (in dollars per share) \| $ / shares										$ 99.46
Fair Value										$ 497
Senior Notes 4.00%, due 2023
Debt Instrument
Total long-term debt										$ 306		$ 305
Interest rate, stated percentage									4.00%	4.00%	4.00%	4.00%
Face Value												$ 310
Net proceeds, after deducting debt issuance costs		$ 305
Fair values of fixed rate debt obligations
Principal Amount										$ 310
Indicated Market Price (in dollars per share) \| $ / shares										$ 94.12
Fair Value										$ 292
Senior Notes 5.875%, due 2023
Debt Instrument
Total long-term debt										$ 688		685
Interest rate, stated percentage									5.875%	5.875%
Fair values of fixed rate debt obligations
Principal Amount										$ 700
Indicated Market Price (in dollars per share) \| $ / shares										$ 102.02
Fair Value										$ 714
Senior Notes 3.125%, due 2024 (725 million EUR)
Debt Instrument
Total long-term debt									€ 725	$ 825	€ 725	849
Interest rate, stated percentage									3.125%	3.125%			3.125%	3.125%
Face Value \| €													€ 225
Net proceeds, after deducting debt issuance costs				$ 237
Fair values of fixed rate debt obligations
Principal Amount										$ 828
Indicated Market Price (in dollars per share) \| $ / shares										$ 98.88
Fair Value										$ 819
Senior Notes 6.375%, due 2025
Debt Instrument
Total long-term debt										$ 295		295
Interest rate, stated percentage									6.375%	6.375%
Fair values of fixed rate debt obligations
Principal Amount										$ 300
Indicated Market Price (in dollars per share) \| $ / shares										$ 100.99
Fair Value										$ 303
Senior Notes, 5.375% due 2025
Debt Instrument
Total long-term debt										$ 297		297
Interest rate, stated percentage									5.375%	5.375%
Fair values of fixed rate debt obligations
Principal Amount										$ 300
Indicated Market Price (in dollars per share) \| $ / shares										$ 97.08
Fair Value										$ 291
Senior Debentures 7.80%, due 2018
Debt Instrument
Interest rate, stated percentage													7.80%	7.80%
Face Value														$ 228
Additional interest charges for note repurchase premiums and write-off of unamortized finance fees			$ 18
Fair values of fixed rate debt obligations
Principal Amount			$ 22
Capital leases
Debt Instrument
Total long-term debt										45		54
Other
Debt Instrument
Total long-term debt										14		$ 17
Revolving Credit Facility
Debt Instrument
Additional default interest rate per annum applied to all obligations owed under the Agreement						2.00%
Fair values of fixed rate debt obligations
Principal Amount										300
Revolving Credit Facility \| Minimum
Debt Instrument
Facility fee payable (as a percent)						0.20%
Revolving Credit Facility \| Maximum
Debt Instrument
Facility fee payable (as a percent)						0.30%
Multicurrency Revolving Credit Facility
Debt Instrument
Total long-term debt										$ 700
European Accounts Receivable Securitization Program
Debt Instrument
Termination of accounts receivable securitization \| €					€ 185