Income Taxes (Details) € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016 USD ($)	Oct. 03, 2015	Oct. 01, 2016 USD ($)	Oct. 03, 2015	Oct. 01, 2016 EUR (€)	Jan. 02, 2016 USD ($)
Income Tax Examination [Line Items]
Unrecognized tax benefits	$ 250		$ 250			$ 338
Accrued interest and penalties	$ 38		$ 38			$ 58
Effective income tax rate reconciliation, percent	13.50%	17.60%	16.30%	12.70%
Special charges, acquisition-related costs, and discrete tax items impact of effective income tax rate	(0.10%)	(1.60%)	(3.10%)	4.20%
Liability for uncertain tax positions	$ 48		$ 48		€ 43
IRS
Income Tax Examination [Line Items]
Reduction of uncertain tax positions from settlements	157
Reduction of accrued interest from settlements	$ 25		$ 25