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Credit Losses on Financial Instruments (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning balance at December 31, 2021 | $ 114 |
Provision for expected losses | 56 |
Write-offs charged against the allowance | (81) |
Recoveries collected | 9 |
Change in allowance in assets held for sale | 5 |
Ending balance at March 21, 2022 | 103 |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Allowance for doubtful accounts | 19 | $ 24
Business |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning balance at December 31, 2021 | 88 |
Provision for expected losses | 19 |
Write-offs charged against the allowance | (32) |
Recoveries collected | 8 |
Change in allowance in assets held for sale | 0 |
Ending balance at March 21, 2022 | 83 |
Mass Markets |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Beginning balance at December 31, 2021 | 26 |
Provision for expected losses | 37 |
Write-offs charged against the allowance | (49) |
Recoveries collected | 1 |
Change in allowance in assets held for sale | 5 |
Ending balance at March 21, 2022 | $ 20 |

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