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v3.20.2

Long-Term Debt - Long-Term Debt (Parenthetical) (Detail) |  | 9 Months Ended |
--- | --- | --- | ---
Mar. 05, 2020 | Sep. 30, 2020 | Dec. 31, 2019
4.25% Senior Notes, Due 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2024 |
Interest rate on notes |  | 4.25% |
7% Debentures, Due 2025 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2025 |
Interest rate on notes |  | 7.00% |
3.450% Senior Notes, Due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2027 |
Interest rate on notes |  | 3.45% |
3.500% Senior Notes, Due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2027 |
Interest rate on notes |  | 3.50% |
2.500% Senior Notes, Due 2030 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year | 2030 | 2030 |
Interest rate on notes | 2.50% | 2.50% |
6.25% Senior Notes, Due 2037 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2037 |
Interest rate on notes |  | 6.25% |
4.250% Senior Notes, Due 2047 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2047 |
Interest rate on notes |  | 4.25% |
Floating Rate Senior Notes, Due 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Maturity year |  | 2020 |
Interest rate |  |  | 2.55%
Trade Receivable Facility |  |  |
Debt Instrument [Line Items] |  |  |
Credit Facility interest rate |  |  | 2.42%

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