Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Jan. 03, 2016
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 24	$ 24	$ 24	$ 24	$ 23	$ 29	$ 28	$ 30
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	5,000,000,000.0	5,000,000,000	5,000,000,000	5,000,000,000	5,000,000,000	5,000,000,000	5,000,000,000	5,000,000,000
Common stock, shares issued	1,224,000,000	1,222,000,000	1,222,000,000	1,222,000,000	1,221,000,000	1,221,000,000	1,221,000,000	1,220,000,000	1,219,000,000	1,214,000,000
Common stock, shares outstanding	1,220,000,000	1,219,000,000	1,219,000,000	1,219,000,000	1,219,000,000	1,218,000,000	1,218,000,000	1,218,000,000	1,217,000,000	1,214,000,000
Treasury stock, shares	4,000,000	3,000,000	3,000,000	3,000,000	2,000,000	3,000,000	3,000,000	2,000,000