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v3.19.2

Debt - Summary of Debt (Non-Printing) (Detail) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
2.60% senior notes due 2019 |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.60% | 2.60%
Maturity year | 2019 | 2019
3.15% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.15% | 3.15%
Maturity year | 2021 | 2021
3.75% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.75% | 3.75%
Maturity year | 2021 | 2021
3.85% senior notes due 2023 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.85% | 3.85%
Maturity year | 2023 | 2023
3.90% senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.90% | 3.90%
Maturity year | 2025 | 2025
4.00% senior notes due 2024 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.00% | 4.00%
Maturity year | 2024 | 2024
4.20% senior notes due 2026 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.20% | 4.20%
Maturity year | 2026 | 2026
4.00% senior notes due 2022 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.00% | 4.00%
Maturity year | 2022 | 2022
4.70% senior notes due 2020 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.70% | 4.70%
Maturity year | 2020 | 2020
5.375% senior notes due 2036 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.375% | 5.375%
Maturity year | 2036 | 2036
5.50% senior notes due 2046 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.50% | 5.50%
Maturity year | 2046 | 2046
5.00% senior notes due 2023 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.00% | 5.00%
Maturity year | 2023 | 2023

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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