Special Charges - Restructuring reserve activity and total expected cash outlay (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Special Charges
Remaining expected cash payments for restructuring activities	$ 40
Restructuring reserve activity
Balance at beginning of period	44	$ 63
Cash paid	(30)	(87)
Reversals		(14)
Non-cash utilization		(4)
Balance at end of period	40	44
Severance Costs
Restructuring reserve activity
Balance at beginning of period	24	50
Cash paid	(21)	(72)
Reversals		(6)
(Reversals)/provision for prior plans	(3)
Balance at end of period	8	24
Contract Terminations and Other
Restructuring reserve activity
Balance at beginning of period	20	13
Cash paid	(9)	(15)
Reversals		(8)
(Reversals)/provision for prior plans	3
Non-cash utilization		(4)
Balance at end of period	32	20
2016 Restructuring Plan
Restructuring reserve activity
Provision for plan		58
2016 Restructuring Plan | Severance Costs
Restructuring reserve activity
Provision for plan		33
2016 Restructuring Plan | Contract Terminations and Other
Restructuring reserve activity
Provision for plan		25
2018 Restructuring Plan
Restructuring reserve activity
Provision for plan	26
2018 Restructuring Plan | Severance Costs
Restructuring reserve activity
Provision for plan	8
2018 Restructuring Plan | Contract Terminations and Other
Restructuring reserve activity
Provision for plan	$ 18
Arctic Cat Acquisition
Restructuring reserve activity
Provision for plan		28
Arctic Cat Acquisition | Severance Costs
Restructuring reserve activity
Provision for plan		19
Arctic Cat Acquisition | Contract Terminations and Other
Restructuring reserve activity
Provision for plan		$ 9