Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Tax (expense) benefit on related to increase (decrease) in accumulated gain (loss) from unrealized gain (loss) on available-for-sale securities	$ 4	$ 4	$ 6	$ 4
Tax (expense) benefit on related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges	$ 2	$ 0	$ (1)	$ 0