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Allowance for Credit Losses – Accounts Receivable | 12 Months Ended
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Dec. 31, 2021
Receivables [Abstract] |
Allowance for Credit Losses – Accounts Receivable | NOTE 6. Allowance for Credit Losses – Accounts Receivable: Activity in the allowance for credit losses on accounts receivable is summarized as follows:
| Year Ended December 31, |  |
(in millions) | 2021 |  |  | 2020 |  |
Balance at beginning of period | $ | 14 |  |  | $ | 13 |  |
Provision for expected credit losses |  | 4 |  |  |  | 7 |  |
Write-offs/recoveries |  | (4 | ) |  |  | (6 | ) |
Balance at end of period | $ | 14 |  |  | $ | 14 |  |

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- Definition The entire disclosure for allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -URI http://asc.fasb.org/topic&trid=2196771 + Details
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- References No definition available. + Details
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