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Schedule II Nov Inc. Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II Nov Inc. Valuation and Qualifying Accounts | SCHEDU LE II NOV INC. VALUATION AND QUALIFYING ACCOUNTS Years Ended December 31, 2023, 2022 and 2021 (in millions)
|  | Balance beginning of year |  |  | Additions (Deductions) charged to costs and expenses |  |  | Charge off's and other |  |  | Balance end of year |
Reserve for excess and obsolete inventories: |  |  |  |  |  |  |  |  |  |  |  |
2023 |  | $ | 378 |  |  | $ | 28 |  |  | $ | (52 | ) |  | $ | 354 |
2022 |  |  | 444 |  |  |  | (18 | ) |  |  | (48 | ) |  |  | 378 |
2021 |  |  | 577 |  |  |  | 73 |  |  |  | (206 | ) |  |  | 444 |
Valuation allowance for deferred tax assets: |  |  |  |  |  |  |  |  |  |  |  |
2023 |  | $ | 920 |  |  | $ | (564 | ) |  | $ | (10 | ) |  | $ | 346 |
2022 |  |  | 1,127 |  |  |  | 24 |  |  |  | (231 | ) |  |  | 920 |
2021 |  |  | 1,093 |  |  |  | 31 |  |  |  | 3 |  |  |  | 1,127 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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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- References No definition available. + Details
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