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Basis of Presentation (Tables) | 3 Months Ended
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Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Reconciliation of cash, cash equivalents and restricted cash | The following table provides a reconciliation of Cash and cash equivalents and restricted cash reported in the Consolidated Balance Sheet to the total of the amounts in the Consolidated Statement of Cash Flows as of March 31, 2019 and December 31, 2018.
| March 31, 2019 |  | December 31, 2018
(Dollars in millions) |  |  |
Cash and cash equivalents | $ | 959 |  |  | $ | 921 |
Restricted cash included in Other current assets | 7 |  |  | 6 |
Cash, cash equivalents and restricted cash in the statement of cash flows | $ | 966 |  |  | $ | 927 |

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