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v3.20.2

Long-term Debt - Summary of Long-term Debt (Parenthetical) (Detail) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 24, 2019 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
3.65% Senior Notes due 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 3.65% |  |  | 3.65% |  | 3.65%
Debt instrument maturity date |  |  |  |  | 2023 |  | 2023
3.90% Senior Notes due 2028 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate | 3.90% | 3.90% |  |  | 3.90% |  | 3.90%
Debt instrument maturity date | 2028 |  |  |  | 2028 |  | 2028
1.375% Notes due 2026 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 1.375% | 1.375% |  | 1.375% |  | 1.375%
Debt instrument maturity date |  |  | 2026 |  | 2026 |  | 2026
2.0% Notes due 2032 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 2.00% | 2.00% |  | 2.00% |  | 2.00%
Debt instrument maturity date |  |  | 2032 |  | 2032 |  | 2032
0.25% Notes due 2027 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 0.25% |  | 0.25% | 0.25% | 0.25% | 0.25%
Debt instrument maturity date |  |  |  | 2027 | 2027 | 2027 | 2027
0.50% Notes due 2031 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 0.50% |  | 0.50% | 0.50% | 0.50% | 0.50%
Debt instrument maturity date |  |  |  | 2031 | 2031 | 2031 | 2031
2.65% Senior Notes due 2030 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 2.65% | 2.65% |  | 2.65% |  | 2.65%
Debt instrument maturity date |  |  | 2030 |  | 2030 |  | 2030
2.40% Senior Notes due 2022 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 2.40% |  |  | 2.40% |  | 2.40%
Debt instrument maturity date |  |  |  |  | 2022 |  | 2022
4.00% Senior Notes due 2025 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 4.00% |  |  | 4.00% |  | 4.00%
Debt instrument maturity date |  |  |  |  | 2025 |  | 2025
4.30% Senior Notes due 2029 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 4.30% |  |  | 4.30% |  | 4.30%
Debt instrument maturity date |  |  |  |  | 2029 |  | 2029
3.75% Senior Notes due 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 3.75% |  |  | 3.75% |  | 3.75%
Debt instrument maturity date |  |  |  |  | 2024 |  | 2024
1.00% Guaranteed Notes due 2026 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 1.00% |  |  | 1.00% |  | 1.00%
Debt instrument maturity date |  |  |  |  | 2026 |  | 2026
2.65% Senior Notes due 2022 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 2.65% |  |  | 2.65% |  | 2.65%
Debt instrument maturity date |  |  |  |  | 2022 |  | 2022
0.00% Notes due 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 0.00% |  |  | 0.00% | 0.00% | 0.00%
Debt instrument maturity date |  |  |  |  | 2024 | 2024 | 2024
1.40% Senior Notes due 2025 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 1.40% |  |  | 1.40% |  | 1.40%
Debt instrument maturity date |  | 2025 |  |  | 2025 |  | 2025
3.63% Senior Notes due 2022 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate | 3.63% | 3.63% |  |  | 3.63% |  | 3.63%
Debt instrument maturity date | 2022 |  |  |  | 2022 |  | 2022
7.00% Notes due 2038 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 7.00% |  |  | 7.00% |  | 7.00%
Debt instrument maturity date |  |  |  |  | 2038 |  | 2038
5.95% Notes due 2041 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 5.95% |  |  | 5.95% |  | 5.95%
Debt instrument maturity date |  |  |  |  | 2041 |  | 2041
5.13% Notes due 2043 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 5.13% |  |  | 5.13% |  | 5.13%
Debt instrument maturity date |  |  |  |  | 2043 |  | 2043
4.00% Notes due 2023 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 4.00% |  |  | 4.00% |  | 4.00%
Debt instrument maturity date |  |  |  |  | 2023 |  | 2023
3.70% Notes due 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 3.70% |  |  | 3.70% |  | 3.70%
Debt instrument maturity date |  |  |  |  | 2024 |  | 2024
3.30% Senior Notes due 2021 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 3.30% | 3.30% |  | 3.30% |  | 3.30%
Debt instrument maturity date |  |  | 2021 |  | 2021 |  | 2021
4.20% Senior Notes due 2021 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument interest rate |  | 4.20% | 4.20% |  | 4.20% |  | 4.20%
Debt instrument maturity date |  |  | 2021 |  | 2021 |  | 2021

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