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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2020
Accounting Policies [Abstract] |
Other Balance Sheet Information | The following table presents the accumulated depreciation included in property, plant and equipment, net and accumulated amortization included in intangible assets, net:
(In millions) | September 30, 2020 |  | December 31, 2019 |
Property, plant and equipment accumulated depreciation | $ | 1,901 |  |  | $ | 1,752 |  |
Intangible assets accumulated amortization | 1,314 |  |  | 1,262 |  |
Activity in Allowance for Credit Losses | The following table represents the activity in the allowance for credit losses for the three and nine months ended September 30, 2020:
(In millions) | Three months ended September 30, 2020 |  | Nine months ended September 30, 2020
Beginning balance | $ | 47 |  |  | $ | 43 |
Provision for credit losses | 26 |  |  | 74 |
Write-offs | (19) |  |  | (71) |
Recoveries collected | 3 |  |  | 11 |
Ending balance | $ | 57 |  |  | $ | 57 |
Reconciliation of Cash and Cash Equivalents, Restricted Cash and Funds Deposited by Counterparties | The following table provides a reconciliation of cash and cash equivalents, restricted cash and funds deposited by counterparties reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the statements of cash flows:
(In millions) | September 30, 2020 |  | December 31, 2019 |  |  |  |
Cash and cash equivalents | $ | 697 |  |  | $ | 345 |  |  |  |  |
Funds deposited by counterparties | 15 |  |  | 32 |  |  |  |  |
Restricted cash | 6 |  |  | 8 |  |  |  |  |
Cash and cash equivalents, funds deposited by counterparties and restricted cash shown in the statement of cash flows | $ | 718 |  |  | $ | 385 |  |  |  |  |

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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