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

No definition available.

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Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

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

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No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum Leverage Ratio is subject to an increase.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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.

+ References

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

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

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

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

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No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

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

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Debt (Details) $ / shares in Units, € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($) item agreement $ / shares	Jun. 30, 2018 USD ($)	Mar. 31, 2019 EUR (€) item	Dec. 31, 2018 USD ($)	Dec. 31, 2018 EUR (€)	Mar. 31, 2018 USD ($)	Mar. 31, 2018 EUR (€)
Debt Instrument
Total long-term debt	$ 5,854			$ 5,214		$ 5,651
Less amounts due within one year	34			33		11
Long-term debt	$ 5,820			5,181		5,640
Number financial maintenance covenants \| agreement	1
Leverage Ratio \| item	4.5		4.5
Short-term loans and long-term debt due within one year	$ 91			160		194
Maximum
Debt Instrument
Maximum Leverage Ratio may increase \| item	0.5
Maximum Borrowing Capacity	$ 1,910
Prior Agreement
Debt Instrument
Interest charges for write-off of finance fees		$ 11
Secured Credit Agreement
Debt Instrument
Unused Credit	$ 434
Weighted average interest rate (as a percent)	3.88%		3.88%
Secured Credit 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%
Secured Credit 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%
Revolving Loans
Debt Instrument
Total long-term debt	$ 553
Revolving Loans \| Prior Agreement
Debt Instrument
Total long-term debt						462
Term Loan A
Debt Instrument
Total long-term debt	897			897
Face Value	910
Net proceeds, after deducting debt issuance costs	897
Term Loan A \| Prior Agreement
Debt Instrument
Total long-term debt						1,149
Other secured debt
Debt Instrument
Total long-term debt	504			404
Senior Notes 6.75%, due 2020 (500 million EUR)
Debt Instrument
Total long-term debt	$ 560		€ 500	570	€ 500	613	€ 500
Interest rate, stated percentage	6.75%		6.75%
Fair values of fixed rate debt obligations
Principal Amount	$ 562
Indicated Market Price (in dollars per share) \| $ / shares	$ 109.50
Fair Value	$ 615
Senior Notes 4.875%, due 2021 (330 million EUR)
Debt Instrument
Total long-term debt	$ 369		€ 330	376	330	404	330
Interest rate, stated percentage	4.875%		4.875%
Fair values of fixed rate debt obligations
Principal Amount	$ 371
Indicated Market Price (in dollars per share) \| $ / shares	$ 109.09
Fair Value	$ 405
Senior Notes 5.00%, due 2022
Debt Instrument
Total long-term debt	$ 497			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	$ 102.64
Fair Value	$ 513
Senior Notes 4.00%, due 2023
Debt Instrument
Total long-term debt	$ 307			306		305
Interest rate, stated percentage	4.00%		4.00%
Fair values of fixed rate debt obligations
Principal Amount	$ 310
Indicated Market Price (in dollars per share) \| $ / shares	$ 105.36
Fair Value	$ 327
Senior Notes 5.875%, due 2023
Debt Instrument
Total long-term debt	$ 688			688		686
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	$ 104.88
Fair Value	$ 734
Senior Notes 3.125%, due 2024 (725 million EUR)
Debt Instrument
Total long-term debt	$ 824		€ 725	825	€ 725	872	€ 725
Interest rate, stated percentage	3.125%		3.125%
Fair values of fixed rate debt obligations
Principal Amount	$ 814
Indicated Market Price (in dollars per share) \| $ / shares	$ 98.51
Fair Value	$ 802
Senior Notes 6.375%, due 2025
Debt Instrument
Total long-term debt	$ 296			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	$ 105.88
Fair Value	$ 318
Senior Notes, 5.375% due 2025
Debt Instrument
Total long-term debt	$ 298			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	$ 101.97
Fair Value	$ 306
Finance leases
Debt Instrument
Total long-term debt	43			45		53
Other
Debt Instrument
Total long-term debt	18			$ 14		$ 19
Revolving Credit Facility
Debt Instrument
Total long-term debt	$ 300
Additional default interest rate per annum applied to all obligations owed under the Agreement	2.00%
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