CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - USD ($) $ in Millions		Jun. 28, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	[1]	$ 525	$ 527
Property, plant and equipment, accumulated depreciation	[1]	16,889	16,789
Current portion of long-term debt	[1]	$ 1,481	$ 1,462

[1] Amounts may not add due to rounding.