Allowance for Losses on Financial Assets - Schedule of Financial Assets, Allowance for Credit Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Account receivable, allowance for credit loss, beginning balance	$ (116)	$ (390)
Unbilled receivables, allowance for credit loss, beginning balance	(23)	(91)
Allowance for credit loss, beginning balance	(367)	(747)
Customer financing, allowance for credit loss, beginning balance	(55)	(18)
Accounts receivable, changes in estimates	(6)	2
Unbilled receivables, changes in estimates	4	21
Customer financing, changes in estimates, rounding		(37)
Customer financing, changes in estimates	4
Changes in estimates	(2)	(76)
Accounts receivable, write-offs	29	260
Unbilled receivables, write-offs		47
Write-offs	34	444
Accounts receivable, recovery	4	12
Recoveries	4	12
Account receivable, allowance for credit loss, ending balance	(89)	(116)
Unbilled receivables, allowance for credit loss, ending balance	(19)	(23)
Allowance for credit loss, ending balance	(331)	(367)
Customer financing, allowance for credit loss, ending balance	(51)	(55)
Other Current Assets
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning balance	(85)	(62)
Changes in estimates	(30)	(27)
Write-offs	5	4
Allowance for credit loss, ending balance	(50)	(85)
Other Assets
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning balance	(88)	(186)
Changes in estimates	(34)	(35)
Write-offs		133
Allowance for credit loss, ending balance	$ (122)	$ (88)