Defined Benefit Plans (Components of Net Periodic Benefit Cost of Defined Benefit Pension Pans) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2021	Jul. 03, 2020	Jul. 02, 2021	Jul. 03, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ (11)	$ (11)	$ (22)	$ (17)
Net periodic benefit (cost)	0	(6)	0	(7)
Defined benefit pension plans | U.S. pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	(11)	(17)	(23)	(34)
Expected return on plan assets	31	31	62	60
Amortization of actuarial loss	(11)	(9)	(22)	(18)
Amortization of prior service credit	0	(1)	0	(1)
Net periodic benefit (cost)	9	4	17	7
Defined benefit pension plans | Non-U.S. pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	(11)	(11)	(22)	(17)
Interest cost	(5)	(6)	(10)	(10)
Expected return on plan assets	11	9	22	18
Amortization of actuarial loss	(3)	(3)	(6)	(5)
Amortization of prior service credit	0	1	0	1
Net periodic benefit (cost)	$ (8)	$ (10)	$ (16)	$ (13)