Summary of Significant Accounting Policies - Lease Receivables Relating to Sales - Type Lease (Details) - USD ($) $ in Millions |
Sep. 30, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Summary Of Significant Accounting Policies [Line Items] | ||
| Gross lease receivables | $ 803 | $ 837 |
| Unearned interest income | (84) | (95) |
| Allowance for expected credit losses | (6) | (4) |
| Net investment in sales-type leases | 713 | 738 |
| Prepaid expenses and other current assets | ||
| Summary Of Significant Accounting Policies [Line Items] | ||
| Net investment in sales-type leases | 178 | 164 |
| Other non-current assets | ||
| Summary Of Significant Accounting Policies [Line Items] | ||
| Net investment in sales-type leases | $ 535 | $ 574 |