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Summary of Significant Accounting Policies - Allowance for Merchant Credit Losses (Details) - Merchant credit losses - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loss Contingencies [Line Items] |  |  |
Aggregate merchant credit losses incurred | $ 62 | $ 41 | $ 113
Collateral held | 1,500 | 2,200 |
Loss contingency accrual | $ 29 | $ 42 |

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349 + Details
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