Debt - Components of Notes Payable (Details) - USD ($) $ in Millions	Apr. 02, 2016		Jan. 02, 2016
Short-term Debt [Line Items]
Principal amount	$ 718		$ 1,204	[1]
Bank borrowings
Short-term Debt [Line Items]
Principal amount	50		44
Europe commercial paper
Short-term Debt [Line Items]
Principal amount	$ 438		$ 261
Effective interest rate (a)	(0.03%)	[2]	0.01%
U.S. commercial paper
Short-term Debt [Line Items]
Principal amount	$ 230		$ 899
Effective interest rate (a)	0.71%		0.45%

[1] Condensed from audited financial statements.

[2] Negative effective interest rates on certain borrowings in Europe are the result of efforts by the European Central Bank to stimulate the economy in the eurozone.