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Allowance for Credit Losses – Accounts Receivable (Tables) | 6 Months Ended
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Jun. 30, 2022
Receivables [Abstract] |
Summary of Allowance for Credit Losses on Accounts Receivables | Activity in the allowance for credit losses on accounts receivable is summarized as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(in millions) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Balance at beginning of period |  | $ | 14 |  |  | $ | 13 |  |  | $ | 14 |  |  | $ | 14 |
Provision for expected credit losses |  |  | 3 |  |  |  | 1 |  |  |  | 5 |  |  |  | 1 |
Write-offs/recoveries |  |  | (1 | ) |  |  | (2 | ) |  |  | (3 | ) |  |  | (3 | )
Balance at end of period |  | $ | 16 |  |  | $ | 12 |  |  | $ | 16 |  |  | $ | 12 |

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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 https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration