Business Segment and Geographic Data Information (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Sales Percentage to One Customer \| Walmart Inc.
Net sales to Walmart, percent	15.00%	14.00%	14.00%
Corporate and Other \| 2018 Global Restructuring Program
Restructuring Charges	$ 392	$ 515	$ 921
Other Income \| 2018 Global Restructuring Program
Restructuring Charges		(194)	(12)
Personal Care \| 2018 Global Restructuring Program
Restructuring Charges	156	252	528
Consumer Tissue \| 2018 Global Restructuring Program
Restructuring Charges	176	176	229
K-C Professional \| 2018 Global Restructuring Program
Restructuring Charges	$ 53	$ 75	$ 125

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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