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Notes Payable - Summary of Company Issued and Publicly Sold Unsecured Senior Notes (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($)
2024 Notes Issued On November 2018 |
Debt and Financial Instruments [Line Items] |
Principal amount | $ 600
2024 Notes Issued​ On December​ 2018 |
Debt and Financial Instruments [Line Items] |
Principal amount | $ 250
2022 Ten-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Nov. 28, 2012
Principal amount | $ 750
Mature date | Nov. 28, 2022
Effective interest rate | 3.59%
2025 Ten-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Jun. 30, 2015
Principal amount | $ 500
Mature date | Jun. 30, 2025
Effective interest rate | 4.22%
2022 Five-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Jul. 06, 2017
Principal amount | $ 900
Mature date | Jul. 06, 2022
Effective interest rate | 3.08%
2027 Ten-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Jul. 06, 2017
Principal amount | $ 600
Mature date | Jul. 06, 2027
Effective interest rate | 3.73%
2023 Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Mar. 29, 2018
Principal amount | $ 1,000
Mature date | Sep. 29, 2023
Effective interest rate | 3.99%
2028 March Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Mar. 29, 2018
Principal amount | $ 500
Mature date | Mar. 29, 2028
Effective interest rate | 4.50%
2024 Notes | 2024 Notes Issued On November 2018 |
Debt and Financial Instruments [Line Items] |
Issue date | Nov. 14, 2018
Principal amount | $ 600
Mature date | May 14, 2024
Effective interest rate | 4.51%
2028 November Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Nov. 14, 2018
Principal amount | $ 400
Mature date | Nov. 14, 2028
Effective interest rate | 4.99%
2025 Five-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Apr. 07, 2020
Principal amount | $ 600
Mature date | Apr. 07, 2025
Effective interest rate | 3.22%
2030 April Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Apr. 07, 2020
Principal amount | $ 400
Mature date | Apr. 07, 2030
Effective interest rate | 3.54%
2026 Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Oct. 09, 2020
Principal amount | $ 650
Mature date | Apr. 09, 2026
Effective interest rate | 1.81%
2030 October Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Oct. 09, 2020
Principal amount | $ 300
Mature date | Oct. 09, 2030
Effective interest rate | 2.43%
2024 Notes | 2024 Notes Issued​ On December​ 2018 |
Debt and Financial Instruments [Line Items] |
Issue date | Dec. 10, 2018
Principal amount | $ 250
Mature date | May 14, 2024
Effective interest rate | 4.54%
2027 Five-year Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Aug. 23, 2021
Principal amount | $ 300
Mature date | Feb. 23, 2027
Effective interest rate | 1.73%
2031 Notes |
Debt and Financial Instruments [Line Items] |
Issue date | Aug. 23, 2021
Principal amount | $ 700
Mature date | Aug. 23, 2031
Effective interest rate | 2.49%

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