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Allowances for Losses on Financial Assets - Schedule of Financial Assets, Allowance for Credit Loss (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward] |  |
Account receivable, allowance for credit loss, beginning balance | $ (89) | $ (116)
Unbilled receivables, allowance for credit loss, beginning balance | (19) | (23)
Allowance for credit loss, beginning balance | (331) | (367)
Customer financing, allowance for credit loss, beginning balance | (51) | (55)
Accounts receivable, changes in estimates | (16) | 1
Unbilled receivables, changes in estimates | (1) | 1
Changes in estimates | (13) | 6
Customer financing, changes in estimates | 15 |
Accounts receivable, write-offs | 2 | 3
Write-offs | 11 | 4
Accounts receivable, recovery | 1 | 1
Recoveries | 1 | 1
Account receivable, allowance for credit loss, ending balance | (102) | (111)
Unbilled receivables, allowance for credit loss, ending balance | (20) | (22)
Allowance for credit loss, ending balance | (332) | (356)
Customer financing, allowance for credit loss, ending balance | (36) | (55)
Other current assets |  |
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward] |  |
Allowance for credit loss, beginning balance | (50) | (85)
Changes in estimates | (1) | 8
Write-offs | 9 | 1
Allowance for credit loss, ending balance | (42) | (76)
Other assets |  |
Contract with Customer, Asset, Allowance for Credit Loss [Roll Forward] |  |
Allowance for credit loss, beginning balance | (122) | (88)
Changes in estimates | (10) | (4)
Allowance for credit loss, ending balance | $ (132) | $ (92)

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