Basis of Presentation and Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended				0 Months Ended
	Jun. 29, 2014		Jun. 30, 2013		Jun. 29, 2014		Jun. 30, 2013		Jun. 24, 2013 Zoetis [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Gain on disposal of discontinued operations––net of tax	$ 2	[1]	$ 10,418	[1]	$ 70	[1]	$ 10,418	[1]	$ 10,400	[1]

[1] For the three and six months ended June 29, 2014, represents post-close adjustments.