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v3.21.2

Debt - Summary of Debt (Footnotes) (Detail) | Jun. 30, 2021 | Mar. 31, 2021
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3.15% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.15% |
3.75% senior notes due 2021 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.75% |
4.00% senior notes due 2022 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.00% |
3.85% senior notes due 2023 |  |
Debt Instrument [Line Items] |  |
Interest rate |  | 3.85%
4.00% senior notes due 2024 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.00% |
4.875% senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.875% |
3.90% senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.90% |
4.20% senior notes due 2026 |  |
Debt Instrument [Line Items] |  |
Interest rate | 4.20% |
5.375% senior notes due 2036 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.375% |
5.50% senior notes due 2046 |  |
Debt Instrument [Line Items] |  |
Interest rate | 5.50% |

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