Debt - Components of Notes Payable (Details) - USD ($) $ in Millions	Oct. 03, 2015	Jan. 03, 2015
Short-term Debt [Line Items]
Principal amount	$ 1,363	$ 828	[1]
Bank borrowings
Short-term Debt [Line Items]
Principal amount	72	51
Europe commercial paper
Short-term Debt [Line Items]
Principal amount	$ 78	$ 96
Effective interest rate	0.02%	0.09%
U.S. commercial paper
Short-term Debt [Line Items]
Principal amount	$ 1,213	$ 681
Effective interest rate	0.41%	0.36%

[1] Condensed from audited financial statements.