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Business Segment and Geographic Data Information (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Net Sales Percentage to One Customer | Walmart Inc.      
Net sales to Walmart, percent 14.00% 14.00% 14.00%
Corporate and Other | 2018 Global Restructuring Program      
Restructuring Charges $ 515 $ 921  
Other Income | 2018 Global Restructuring Program      
Restructuring Charges (194) (12)  
Personal Care | 2018 Global Restructuring Program      
Restructuring Charges 252 528  
Consumer Tissue | 2018 Global Restructuring Program      
Restructuring Charges 176 229  
K-C Professional | 2018 Global Restructuring Program      
Restructuring Charges $ 75 $ 125