Business Segment and Geographic Data Information (Sales of Principal Products) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues	[1]	$ 19,140	$ 18,450	$ 18,486
Baby and Child Care Products
Revenues		6,400	6,300	6,300
Consumer Tissue Products
Revenues		6,700	6,000	6,000
Away from Home Professional Products
Revenues		3,000	3,300	3,400
All Other
Revenues		$ 3,000	$ 2,900	$ 2,800

[1] Net sales in the U.S. to third parties totaled $9,679, $9,027 and $8,803 in 2020, 2019 and 2018, respectively. No other individual country's net sales exceeds 10 percent of total net sales.