Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 2,396	$ 2,197	$ 1,445
Other Comprehensive Income (Loss), Net of Tax
Unrealized currency translation adjustments	129	19	(428)
Employee postretirement benefits	37	12	140
Other	(34)	(34)	51
Total Other Comprehensive Income (Loss), Net of Tax	132	(3)	(237)
Comprehensive Income	2,528	2,194	1,208
Comprehensive income attributable to noncontrolling interests	(55)	(31)	(22)
Comprehensive Income Attributable to Kimberly-Clark Corporation	$ 2,473	$ 2,163	$ 1,186