Overview & Summary of Significant Accounting Policies - Lease Receivables Relating to Sales - Type Lease (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Summary Of Significant Accounting Policies [Line Items]
Gross lease receivables	$ 584	$ 780
Unearned interest income	(48)	(78)
Allowance for expected credit losses	(7)	(6)
Net investment in sales-type leases	529	696
Prepaid expenses and other current assets
Summary Of Significant Accounting Policies [Line Items]
Net investment in sales-type leases	171	189
Other non-current assets
Summary Of Significant Accounting Policies [Line Items]
Net investment in sales-type leases	$ 358	$ 507