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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- 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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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Debt - Narrative (Details) - USD ($)	Sep. 30, 2017	Apr. 03, 2017
Debt Instrument [Line Items]
Principal amount		$ 1,500,000,000.0
Term loan \| USD term loan due 2020
Debt Instrument [Line Items]
Principal amount		375,000,000
Term loan \| USD term loan due 2022
Debt Instrument [Line Items]
Principal amount		1,310,000,000.000
Term loan \| EUR term loan due 2022
Debt Instrument [Line Items]
Principal amount		$ 315,000,000
Senior notes \| Senior notes due 2020
Debt Instrument [Line Items]
Stated interest rate		2.875%
Senior notes \| Senior notes due 2025
Debt Instrument [Line Items]
Stated interest rate		4.25%
Senior notes \| Senior notes due 2027
Debt Instrument [Line Items]
Stated interest rate		4.75%
Senior notes \| Senior notes due 2030 \| HPES
Debt Instrument [Line Items]
Principal amount		$ 300,000,000
Stated interest rate		7.45%
Credit facility \| Revolving credit facility
Debt Instrument [Line Items]
Commitments outstanding	$ 3,810,000,000
Credit facility \| Commitments due January 2021 \| Revolving credit facility
Debt Instrument [Line Items]
Commitments outstanding	70,000,000
Credit facility \| Commitments due January 2023 \| Revolving credit facility
Debt Instrument [Line Items]
Commitments outstanding	$ 3,740,000,000