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v3.23.1

Equipment Installment Plans - Allowance for Credit Losses (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Allowance for credit losses |  |
Allowance for credit losses, beginning of period | $ 96 |
Allowance for credit losses, end of period | 94 |
Equipment Installment Plan Receivable |  |
Allowance for credit losses |  |
Write-offs, net of recoveries, originated in 2021 | 6 |
Write-offs, net of recoveries, originated in 2022 | 14 |
Write-offs, net of recoveries, originated in 2023 | 0 |
Write-offs, net of recoveries, Total | 20 | $ 16
Allowance for credit losses, beginning of period | 96 | 72
Bad debts expense | 18 | 17
Write-offs, net of recoveries | (20) | (16)
Allowance for credit losses, end of period | $ 94 | $ 73

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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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