Facilities include provisions for letters of credit

No definition available.

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Balance Type:	debit
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

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Balance Type:	na
Period Type:	duration

- Definition

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
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-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	duration

- Definition

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

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

- Definition

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

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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.

+ Details

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Period Type:	duration

- Definition

Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586

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

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
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).

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Balance Type:	credit
Period Type:	instant

- Definition

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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Balance Type:	credit
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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Details

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Debt (Narrative) (Details)	12 Months Ended
Debt (Narrative) (Details)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 EUR (€)	Apr. 30, 2018 USD ($)	Apr. 30, 2018 EUR (€)	Jan. 31, 2018 USD ($)	Jan. 31, 2018 EUR (€)
Debt Instrument [Line Items]
Long-term debt, fair value	$ 8,735,000,000	$ 5,562,000,000
Borrowings outstanding	8,603,000,000	5,281,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year one	86,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year two	88,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year three	76,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year four	1,711,000,000
Aggregate maturities of long term debt excluding unamortized discounts, year five	1,400,000,000
Cash payments for interest	334,000,000	225,000,000	$ 217,000,000
Term loan facilities \| Term A Loan Under U.S. Dollar Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount					$ 100,000,000
Term loan facilities \| U.S. dollar at LIBOR plus 2.00% due 2025
Debt Instrument [Line Items]
Borrowings outstanding	864,000,000	0
Debt instrument, face amount					$ 1,150,000,000
Term loan facilities \| Euro at EURIBOR plus 2.375% due 2025
Debt Instrument [Line Items]
Borrowings outstanding	846,000,000	0
Debt instrument, face amount	859,000,000					€ 750,000,000
Revolving credit facilities
Debt Instrument [Line Items]
Borrowings outstanding	0	122,000,000
Senior notes and debentures: \| U.S. dollar at 4.75% due 2026
Debt Instrument [Line Items]
Borrowings outstanding	$ 863,000,000	0
Debt instrument, face amount							$ 875,000,000
Debt instrument stated percentage	4.75%			4.75%			4.75%	4.75%
Senior notes and debentures: \| €500 at 2.875% due 2026
Debt Instrument [Line Items]
Borrowings outstanding	$ 566,000,000	0
Debt instrument, face amount	$ 573,000,000			€ 500,000,000				€ 500,000,000
Debt instrument stated percentage	2.875%			2.875%			2.875%	2.875%
Senior notes and debentures: \| €335 at 2.25% due 2023
Debt Instrument [Line Items]
Borrowings outstanding	$ 380,000,000	$ 0
Debt instrument, face amount	$ 384,000,000			€ 335,000,000				€ 335,000,000
Debt instrument stated percentage	2.25%			2.25%			2.25%	2.25%
LIBOR \| Term loan facilities \| U.S. dollar at LIBOR plus 2.00% due 2025
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, available borrowing capacity	$ 1,582,000,000
Line of credit facility, maximum borrowing capacity	1,650,000,000
Outstanding letters of credit	$ 68,000,000
Debt Instrument, Covenant Compliance	6.5
Revolving Credit Facility \| Revolving credit facilities
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							$ 1,650,000,000
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Provisions for letters of credit	$ 300,000,000
Basis spread on variable rate (as a percent)	2.375%
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.00%