Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Tax Credit Carryforward [Line Items]
U.S. statutory rate	35.00%	35.00%	35.00%
Decrease in effective tax rate (as a percent)	3.20%
Effective Income Tax Rate Reconciliation Share based Compensation Excess Tax Benefit Percent	1.80%
Other tax benefit		$ (400)
Deferred tax assets, valuation allowance		196
Other deferred tax assets	$ 1,135	922
Unrecognized tax benefits	3,041	3,080	$ 2,465	$ 2,729
Unrecognized tax benefits, interest on income tax expense	7	44	$ 12
Unrecognized tax benefits, interest on income taxes accrued	$ 344	$ 366
OCD
Tax Credit Carryforward [Line Items]
U.S. statutory rate		44.00%