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Debt, Interest Incurred (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Interest and Debt Expense, Net of Capitalized Interest |  |  |  |
Interest and debt expense | $ 162 | $ 133 | $ 468 | $ 405
Less: Capitalized interest | 19 | 22 | 58 | 70
Interest and debt expense, net of capitalized interest | $ 143 | $ 111 | $ 410 | $ 335

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