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Derivative Financial Instruments - Reclassification Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Costs and expenses |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax | $ (12) | $ 10 | $ (12) | $ 27 | $ 31 | $ 31 | $ (18)
General and administrative expense |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax | 1 | 3 | 3 | 5 | 7 | 10 | 5
Revenues |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax |  |  |  |  |  | 1 |
Costs and expenses |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax | (5) | (4) | (12) | (6) | (15) | 7 | 13
General and administrative expense |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax | $ (9) | $ (12) | $ (13) | $ (23) | $ (17) | $ (12) | $ 8

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