Defined Benefit Plans (Components of Net Periodic Benefit Cost of Defined Benefit Pension Pans) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2021	Apr. 03, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ (11)	$ (6)
Net periodic benefit (cost)	0	(1)
Defined benefit pension plans | U.S. pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	(12)	(17)
Expected return on plan assets	31	29
Amortization of actuarial loss	(11)	(9)
Net periodic benefit (cost)	8	3
Defined benefit pension plans | Non-U.S. pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	(11)	(6)
Interest cost	(5)	(4)
Expected return on plan assets	11	9
Amortization of actuarial loss	(3)	(2)
Net periodic benefit (cost)	$ (8)	$ (3)