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Allowance for Losses on Financial Assets - Schedule of Financial Assets, Allowance for Credit Loss (Details) - USD ($) $ in Millions | 12 Months Ended
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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)

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- Definition Amount of direct write-downs charged against the allowance for credit loss. + References No definition available. + Details
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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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