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Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Allowance for doubtful accounts |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of period |  | $ 102 | $ 112 | $ 123
Additions, charged (credited) to income |  | 15 | 7 | 16
Additions, charged (credited) to AOCL |  | 0 | 0 | 0
Deductions from reserves | [1] | (27) | (19) | (22)
Translation adjustment during period |  | (6) | 2 | (5)
Balance at end of period |  | 84 | 102 | 112
Valuation allowance — deferred tax assets |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of period |  | 1,275 | 1,072 | 1,044
Additions, charged (credited) to income |  | (24) | 202 | 35
Additions, charged (credited) to AOCL |  | 1 | 1 | (7)
Deductions from reserves | [1] | 0 | 0 | 0
Translation adjustment during period |  | 0 | 0 | 0
Balance at end of period |  | $ 1,252 | $ 1,275 | $ 1,072
[1] | Accounts receivable charged off.

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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