Restructuring and Related Implementation Charges - Restructuring Charges Incurred, by Segment (Details) - Global Growth and Efficiency Program	12 Months Ended
	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	100.00%
Percent of restructuring charges related to segment, total program accumulated charges	100.00%
Pet Nutrition
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	2.00%
Percent of restructuring charges related to segment, total program accumulated charges	8.00%
Corporate
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	73.00%
Percent of restructuring charges related to segment, total program accumulated charges	42.00%
North America
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	4.00%
Percent of restructuring charges related to segment, total program accumulated charges	17.00%
Latin America
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	12.00%
Percent of restructuring charges related to segment, total program accumulated charges	5.00%
Europe
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	4.00%
Percent of restructuring charges related to segment, total program accumulated charges	19.00%
Asia Pacific
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	6.00%
Percent of restructuring charges related to segment, total program accumulated charges	4.00%
Africa/Eurasia
Restructuring Cost and Reserve [Line Items]
Percent of total restructuring charges related to segment	(1.00%)
Percent of restructuring charges related to segment, total program accumulated charges	5.00%