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Debt - Debt Covenants (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Debt Instrument [Line Items] |  |  |
Coverage ratio of debt-to-EBITDA, maximum | 5.00 |  |
Ratio of debt-to-EBITDA during acquisition period, maximum | 5.50 |  |
Threshold for acquisition period qualification | $ 150 |  |
Outstanding letters of credit | $ 205 | $ 102 |
Letters of credit | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Periods for which letters of credit are issued (in days) | 70 days |  |
Credit Agreements and Commercial Paper Program |  |  |
Debt Instrument [Line Items] |  |  |
Total borrowings | $ 18,100 | 25,000 | $ 32,500
Total repayments | $ 17,700 | $ 25,000 | $ 33,200

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