Accounting Policies and Supplemental Disclosures - Use of Estimates (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Estimated severance costs	$ 510
Impairments of property and equipment and operating leases	250	$ 260
Expense for terminating contracts	180	$ 230
AWS
Restructuring Cost and Reserve [Line Items]
Estimated severance costs	$ 320