Pension Benefits Level 3 Gains and Losses (Details) - Pension - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	$ 4,544	$ 4,584
Fair Value, End of Year	5,043	4,544
Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	131	141
Sales	(131)	(3)
Purchases	0	0
Transfers	0	(3)
Realized gain and unrealized gain (loss)	0	(7)
Currency Translation	0	3
Fair Value, End of Year	0	131
Buy-in Annuity Contract
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	131
Fair Value, End of Year	0	131
Buy-in Annuity Contract | Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	131	135
Sales	(131)	0
Purchases	0	0
Transfers	0	0
Realized gain and unrealized gain (loss)	0	(7)
Currency Translation	0	3
Fair Value, End of Year	0	131
Other Investments [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	153
Fair Value, End of Year	191	153
Other Investments [Member] | Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value, Beginning of Year	0	6
Sales	0	(3)
Purchases	0	0
Transfers	0	(3)
Realized gain and unrealized gain (loss)	0	0
Currency Translation	0	0
Fair Value, End of Year	$ 0	$ 0