Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Millions	Apr. 03, 2016	Jan. 03, 2016
Current assets:
Allowances for doubtful accounts	$ 278	$ 268
Shareholders' equity:
Common stock, par value per share	$ 1.00	$ 1.00
Common stock, shares authorized	4,320,000	4,320,000
Common stock, shares issued	3,119,843	3,119,843
Treasury stock, shares	368,138	364,681