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Summary of Significant Accounting Policies (Table) | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [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.
December 31, | 2021 |  | 2020
(Dollars in millions) |  |  |
Cash and cash equivalents | $ | 367 |  |  | $ | 1,429 |
Restricted cash included in Other current assets | 47 |  |  | 23 |
Cash, cash equivalents and restricted cash in the statement of cash flows | $ | 414 |  |  | $ | 1,452 |
Implementation costs | Implementation costs related to TDS' cloud-hosted arrangements, which are recorded in Prepaid expenses and Other assets and deferred charges in the Consolidated Balance Sheet, were as follows:
December 31, | 2021 |  | 2020
(Dollars in millions) |  |  |
Implementation costs, gross | $ | 87 |  |  | $ | 69 |
Accumulated amortization | (30) |  |  | (13) |
Implementation costs, net | $ | 57 |  |  | $ | 56 |

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