Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 30, 2017
Statement of Financial Position [Abstract]
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,500,000,000	1,500,000,000
Common stock, shares issued (in shares)	981,000,000	979,000,000
Common stock, shares outstanding (in shares)	969,000,000	967,000,000
Treasury stock, shares (in shares)	12,000,000	12,000,000