Exit or Disposal Activities (Narrative) (Details) (COGS and SGA Programs [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 4
Other cash costs including relocation of assets and employees	1
Asset write-offs	4
Total charges and program costs incurred	9	1
Additional expected program costs	4
U.S. Morning Foods [Member]
Restructuring Cost and Reserve [Line Items]
Total charges and program costs incurred	2
U.S. Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Total charges and program costs incurred	1
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Total charges and program costs incurred	$ 6