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Accounting Policies (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Facility Closing [Member] |  |
Gain (Loss) on Sale of Properties |  | $ 31
Other Restructuring [Member] |  |
Gain (Loss) on Sale of Properties |  | $ 194
Other (income) and expense, net |  |
Business tax credit, favorable legal ruling, foreign | $ 77 |
Business tax credit, favorable legal ruling, foreign | $ 77 |
Trademarks | Minimum |  |
Intangible assets estimated useful life | 10 years |
Trademarks | Maximum |  |
Intangible assets estimated useful life | 20 years |
Patents, Developed Technologies & Other Intangible Assets | Minimum |  |
Intangible assets estimated useful life | 15 years |
Patents, Developed Technologies & Other Intangible Assets | Maximum |  |
Intangible assets estimated useful life | 20 years |
Building |  |
Estimated useful life | 40 years |
Machinery and Equipment | Minimum |  |
Estimated useful life | 16 years |
Machinery and Equipment | Maximum |  |
Estimated useful life | 20 years |
Software |  |
Estimated useful life | 5 years |
Net Sales Percentage to One Customer | K-C Argentina |  |
Concentration Risk, Percentage | 1.00% | 1.00%

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- Definition revenue base, which included value added taxes, used to calculate and pay social security taxes for the period 2004 to 2014. In the legal ruling, the São Paulo State Court recognized our right to exclude the value added taxes from the revenue base used to calculate those social security taxes. + References No definition available. + Details
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