Retirement and Other Employee Benefits - Pension and Postretirement Health Care Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Amortization of:
Settlement loss	$ 9	$ 0
U.S. Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	46	46
Expected return on plan assets	(58)	(55)
Amortization of:
Unrecognized net loss	11	9
Unrecognized prior service benefit	0	0
Settlement loss	0	0
Net periodic pension cost (benefit)	(1)	0
Non U.S. Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2
Interest cost	10	14
Expected return on plan assets	(23)	(24)
Amortization of:
Unrecognized net loss	4	3
Unrecognized prior service benefit	0	0
Settlement loss	9	0
Net periodic pension cost (benefit)	1	(5)
Postretirement Health Care Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	1	1
Expected return on plan assets	(3)	(2)
Amortization of:
Unrecognized net loss	1	1
Unrecognized prior service benefit	(4)	(5)
Settlement loss	0	0
Net periodic pension cost (benefit)	$ (5)	$ (5)