Restructuring and Related Implementation Charges (Details 2) (Two Thousand Twelve Restructuring Program [Member])	12 Months Ended			27 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Pet Nutrition [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	10.00%	8.00%	3.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				8.00%
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	49.00%	42.00%	38.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				44.00%
North America [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	11.00%	11.00%	2.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				10.00%
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	4.00%	4.00%	0.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				4.00%
Europe South Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	20.00%	28.00%	55.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				28.00%
Asia [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	3.00%	0.00%	0.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				1.00%
Africa/Eurasia [Member]
Restructuring Cost and Reserve [Line Items]
Percent of Restructuring Charges Related to Segment for Period	3.00%	7.00%	2.00%
Percent Of Restructuring Charges Reportable Segment Program Charges Incurred To Date				5.00%