Summary of Significant Accounting Policies - Lease Receivable Relating to Sales -Type Lease (Details) - USD ($) $ in Millions |
Sep. 30, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Summary Of Significant Accounting Policies [Line Items] | ||
| Gross lease receivables | $ 726 | $ 427 |
| Unearned interest income | (83) | (50) |
| Allowance for expected credit losses | (3) | (1) |
| Net investment in sales-type leases | 640 | 376 |
| Prepaid Expenses and Other Current Assets [Member] | ||
| Summary Of Significant Accounting Policies [Line Items] | ||
| Net investment in sales-type leases | 145 | 73 |
| Other Noncurrent Assets [Member] | ||
| Summary Of Significant Accounting Policies [Line Items] | ||
| Net investment in sales-type leases | $ 495 | $ 303 |