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Loans receivable, net - Schedule of Loans Receivable, Net (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021
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Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Loans receivable | $ 3,402 | $ 2,840 |  |
Allowance for doubtful accounts | (1,024) | (1,104) | $ (1,008) | $ (435)
Loans receivable, net | 2,378 | 1,736 |  |
On-line merchant |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Loans receivable | 418 | 394 |  |
Allowance for doubtful accounts | (120) | (120) | (112) | (79)
Loans receivable, net | 298 | 274 |  |
Consumer |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Loans receivable | 1,827 | 1,568 |  |
Allowance for doubtful accounts | (573) | (614) | (537) | (232)
Loans receivable, net | 1,254 | 954 |  |
In-store merchant |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Loans receivable | 294 | 267 |  |
Allowance for doubtful accounts | (127) | (145) | $ (136) | $ (76)
Loans receivable, net | 167 | 122 |  |
Credit cards |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |
Loans receivable | 863 | 611 |  |
Allowance for doubtful accounts | (204) | (225) |  |
Loans receivable, net | $ 659 | $ 386 |  |

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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
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