Restructuring and Related Implementation Charges - Schedule of Restructuring Charges Incurred, by Segment (Details) - Global Productivity Initiative	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	100.00%	100.00%
Program-to-date Accumulated Charges	100.00%
Hill's Pet Nutrition
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	7.00%	14.00%
Program-to-date Accumulated Charges	12.00%
Corporate
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	2.00%	20.00%
Program-to-date Accumulated Charges	14.00%
North America
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	3.00%	15.00%
Program-to-date Accumulated Charges	9.00%
Latin America
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	0.00%	1.00%
Program-to-date Accumulated Charges	9.00%
Europe
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	88.00%	19.00%
Program-to-date Accumulated Charges	43.00%
Asia Pacific
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	0.00%	21.00%
Program-to-date Accumulated Charges	7.00%
Africa/Eurasia
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	0.00%	10.00%
Program-to-date Accumulated Charges	6.00%