Restructuring and Related Implementation Charges (Details 1) (Two Thousand Twelve Restructuring Program [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		18 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the 2012 Restructuring Program	$ 102	$ 66
Aftertax charges related to the 2012 Restructuring Program	73	52
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the 2012 Restructuring Program	10	8
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the 2012 Restructuring Program	17	8
Other (Income) Expense, Net [Member]
Restructuring Cost and Reserve [Line Items]
Pretax charges related to the 2012 Restructuring Program	$ 75	$ 50
Pet Nutrition [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	10.00%		10.00%
Percent of Restructuring Charges Related to Segment for Period	8.00%	3.00%
Percent of Restructuring Charges Related to Segment Program to Date			7.00%
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	40.00%		40.00%
Percent of Restructuring Charges Related to Segment for Period	56.00%	45.00%
Percent of Restructuring Charges Related to Segment Program to Date			44.00%
North America [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	15.00%		15.00%
Percent of Restructuring Charges Related to Segment for Period	9.00%
Percent of Restructuring Charges Related to Segment Program to Date			10.00%
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	5.00%		5.00%
Percent of Restructuring Charges Related to Segment for Period	4.00%	15.00%
Percent of Restructuring Charges Related to Segment Program to Date			3.00%
Europe/South Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	20.00%		20.00%
Percent of Restructuring Charges Related to Segment for Period	21.00%	31.00%
Percent of Restructuring Charges Related to Segment Program to Date			31.00%
Asia [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	5.00%		5.00%
Africa/Eurasia [Member]
Restructuring Cost and Reserve [Line Items]
Expected Percent of Total Restructuring Charges Related to Segment	5.00%		5.00%
Percent of Restructuring Charges Related to Segment for Period	2.00%	6.00%
Percent of Restructuring Charges Related to Segment Program to Date			5.00%