Allowance for Losses on Financial Assets - Schedule of Financial Assets, Allowance for Credit Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Account receivable, allowance for credit loss, beginning balance	$ (390)	$ (444)
Unbilled receivables, allowance for credit loss, beginning balance	(91)	(129)
Allowance for credit loss, beginning balance	(747)	(802)
Customer financing, allowance for credit loss, beginning balance	(18)	(17)
Accounts receivable, changes in estimates	2	(24)
Unbilled receivables, changes in estimates	21	(11)
Customer financing, changes in estimates, rounding		(1)
Customer financing, changes in estimates	(37)		$ (12)
Changes in estimates	(76)	(89)
Accounts receivable, write-offs	260	77
Unbilled receivables, write-offs	47	49
Write-offs	444	143
Accounts receivable, recovery	12	1
Recoveries	12	1
Account receivable, allowance for credit loss, ending balance	(116)	(390)	(444)
Unbilled receivables, allowance for credit loss, ending balance	(23)	(91)	(129)
Allowance for credit loss, ending balance	(367)	(747)	(802)
Customer financing, allowance for credit loss, ending balance	(55)	(18)	(17)
Other Current Assets
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning balance	(62)	(72)
Changes in estimates	27	6
Write-offs	4	4
Allowance for credit loss, ending balance	(85)	(62)	(72)
Other Assets
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss, beginning balance	(186)	(140)
Changes in estimates	(35)	(59)
Write-offs	133	13
Allowance for credit loss, ending balance	$ (88)	$ (186)	$ (140)