Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jan. 03, 2021	Dec. 29, 2019
Current assets:
Allowances for doubtful accounts	$ 293	$ 226
Shareholders' equity:
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Common stock, par value per share (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	4,320,000,000	4,320,000,000
Common stock, shares issued (in shares)	3,119,843,000	3,119,843,000
Treasury stock, shares	487,331,000	487,336,000