Segment Information - Schedule of Segment Reporting Information to Consolidated Assets (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total assets	$ 17,484	$ 18,693
Cash and cash equivalents	1,321	2,277
Corporate fixed assets, net	5,377	5,704
Operating Segments
Segment Reporting Information [Line Items]
Total assets	15,281	15,339
Segment Reconciling Items
Segment Reporting Information [Line Items]
Cash and cash equivalents	1,321	2,277
Deferred income taxes	466	573
Corporate fixed assets, net	320	334
Fair value of derivative contracts	11	37
Other	$ 85	$ 133

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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