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