Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Operating Loss Carryforwards [Line Items]
Effective income tax rate	20.60%	22.60%	30.40%
Non-cash gain from deconsolidation	$ 49	$ 0	$ 0
Amount Recognized in Income Due to Inflationary Accounting	112		15
Accumulated foreign earnings considered permanently reinvested	2,000	2,200	2,200
Deferred taxes related to foreign earnings not considered indefinitely reinvested	0	1	2
Unremitted foreign earnings		23	24
Tax benefits of carryforwards	55	54
Valuation allowance	45	39
Income taxes paid	$ 337	414	426
U.S percentage of tax provision	50.00%
Unrecognized tax benefits classified as current liabilities	$ 13
Projected additions to unrecognized tax benefits related to ongoing intercompany pricing activity	8
Unrecognized tax benefits that would affect the Company's effective tax rate in future periods	48
Income Tax Examination, Interest Expense	3	3	4
IncomeTaxSettelmentPenaltiesAndInterestExpense			6
Accrued tax-related interest and penalties	17	$ 20	$ 17
U.S. Snacks | Selling, General and Administrative Expenses | Variable Interest Entity, Primary Beneficiary [Member]
Operating Loss Carryforwards [Line Items]
Non-cash gain from deconsolidation	$ 67