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Segment Information - Schedule of Segment Reporting Information to Consolidated Assets (Details) - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Total assets | $ 17,913 | $ 18,693
Cash and cash equivalents | 1,357 | 2,277
Corporate fixed assets, net | 5,517 | 5,704
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets | 15,611 | 15,372
Segment Reconciling Items |  |
Segment Reporting Information [Line Items] |  |
Cash and cash equivalents | 1,357 | 2,277
Deferred income taxes | 568 | 573
Corporate fixed assets, net | 302 | 305
Fair value of derivative contracts | 5 | 37
Other | $ 70 | $ 129

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