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v3.22.1

Long-Term Debt - Outstanding Long-Term Debt- Supplemental Information (Detail) | 3 Months Ended
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Mar. 31, 2022
5.93% note, due October 31, 2023 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Oct. 31, 2023
Debt Instrument, Interest Rate, Stated Percentage | 5.93%
5.68% note, due June 30, 2026 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Jun. 30, 2026
Debt Instrument, Interest Rate, Stated Percentage | 5.68%
6.43% note, due May 2, 2028 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | May 02, 2028
Debt Instrument, Interest Rate, Stated Percentage | 6.43%
3.73% note, due December 16, 2028 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Dec. 16, 2028
Debt Instrument, Interest Rate, Stated Percentage | 3.73%
3.88% note, due May 15, 2029 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | May 15, 2029
Debt Instrument, Interest Rate, Stated Percentage | 3.88%
3.25% due April 30, 2032 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Apr. 30, 2032
Debt Instrument, Interest Rate, Stated Percentage | 3.25%
3.48% note, due May 31, 2038 [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | May 31, 2038
Debt Instrument, Interest Rate, Stated Percentage | 3.48%
Uncollateralized Senior Note Due November Two Thousand Thirty Eight [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Nov. 30, 2038
Debt Instrument, Interest Rate, Stated Percentage | 3.58%
Uncollateralized Senior Note Due August Two Thousand Thirty Nine [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Aug. 20, 2039
Debt Instrument, Interest Rate, Stated Percentage | 3.98%
Uncollateralized Senior Note Due December Two Thousand Thirty Four [Member] |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Dec. 20, 2034
Debt Instrument, Interest Rate, Stated Percentage | 2.98%
Uncollateralized Senior Note Due July Two Thousand Thirty Five |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Jul. 15, 2035
Debt Instrument, Interest Rate, Stated Percentage | 3.00%
Uncollateralized Senior Note Due August Two Thousand Thirty Five |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Aug. 15, 2035
Debt Instrument, Interest Rate, Stated Percentage | 2.96%
Equipment Security Note |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Sep. 24, 2031
Debt Instrument, Interest Rate, Stated Percentage | 2.46%
Uncollateralized Senior Note Due January Two Thousand Thirty Seven |
Debt Instrument [Line Items] |
Debt instrument, maturity date | Jan. 25, 2037
Debt Instrument, Interest Rate, Stated Percentage | 2.49%

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