v3.10.0.1

Debt - Summary of Outstanding Long-Term Debt (Parenthetical) (Detail)	Dec. 31, 2018
Fixed-Rate 3.75% Senior Unsecured Notes Maturing in June 2018 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	3.75%
Fixed-Rate 4.125% Senior Unsecured Notes Maturing in June 2020 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	4.125%
Fixed-Rate 4.125% Senior Unsecured Notes Maturing in June 2021 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	4.125%
Fixed-Rate 4.625% Senior Unsecured Notes Maturing in June 2022 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	4.625%
Fixed-Rate 3.875% Senior Unsecured Notes Maturing in September 2022 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	3.875%
Fixed-Rate 5.75% Senior Unsecured Notes Maturing in March 2023 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	5.75%
Fixed-Rate 4.625% Senior Unsecured Notes Maturing in June 2023 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	4.625%
Fixed-Rate 4.875% Senior Unsecured Notes Maturing in March 2024 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	4.875%
Fixed-Rate 5.35% Senior Unsecured Notes Maturing in March 2026 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	5.35%
Fixed-Rate 5.55% Senior Unsecured Notes Maturing in December 2028 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	5.55%
Fixed-Rate 1% Cash Convertible Notes Maturing in December 2019 [Member]
Debt Instrument [Line Items]
Fixed rate on notes	1.00%

X

- 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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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ 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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