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Supplemental Financial Information - Interest Expense, Net (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Interest Income Expense Net |  |  |  |
Interest expense, net of capitalized interest | $ 40 | $ 28 | $ 70 | $ 53
Interest income | (4) | (8) | (13) | (15)
Interest expense, net | $ 36 | $ 20 | $ 57 | $ 38

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