Nonpension Postretirement and Postemployment Benefits (Tables)

12 Months Ended

Dec. 29, 2018

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]



(millions)	2018			2017
Change in accumulated benefit obligation
Beginning of year	$	1,190		$	1,161
Service cost	18			18
Interest cost	36			37
Actuarial (gain) loss	(105		)	29
Benefits paid	(67		)	(61		)
Curtailments	—			3
Amendments	—			—
Foreign currency adjustments	(3		)	3
End of year	$	1,069		$	1,190
Change in plan assets
Fair value beginning of year	$	1,292		$	1,136
Actual return on plan assets	(91		)	217
Employer contributions	17			13
Benefits paid	(78		)	(74		)
Fair value end of year	$	1,140		$	1,292
Funded status	$	71		$	102
Amounts recognized in the Consolidated Balance Sheet consist of
Other non-current assets	$	107		$	144
Other current liabilities	(2		)	(2		)
Other liabilities	(34		)	(40		)
Net amount recognized	$	71		$	102
Amounts recognized in accumulated other comprehensive income consist of
Prior service credit	(68		)	(77		)
Net amount recognized	$	(68	)	$	(77	)

Schedule of Net Benefit Costs [Table Text Block]



(millions)	2018			2017			2016
Service cost	$	18		$	18		$	21
Interest cost	36			37			39
Expected return on plan assets	(94		)	(98		)	(90		)
Amortization of unrecognized prior service credit	(9		)	(9		)	(9		)
Recognized net (gain) loss	81			(90		)	(19		)
Net periodic benefit cost	32			(142		)	(58		)
Curtailment	—			3			—
Postretirement benefit expense:
Defined benefit plans	32			(139		)	(58		)
Defined contribution plans	11			16			17
Total	$	43		$	(123	)	$	(41	)

Schedule of Assumptions Used [Table Text Block]



	2018		2017		2016
Discount rate	4.3	%	3.6	%	4.0	%

The weighted-average actuarial assumptions used to determine annual net periodic benefit cost were:



	2018		2017		2016
Discount rate	3.6	%	4.0	%	4.2	%
Long-term rate of return on plan assets	7.5	%	8.5	%	8.5	%

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]



(millions)	One percentage point increase		One percentage point decrease
Effect on total of service and interest cost components	$	6	$	(3	)
Effect on postretirement benefit obligation	97		(67		)

Schedule of Allocation of Plan Assets [Table Text Block]



(millions)	Total Level 1		Total Level 2		Total Level 3		Total NAV (practical expedient)(a)		Total
Cash and cash equivalents	$	2	$	1	$	—	$	—	$	3
Corporate stock, common:
Domestic	108		—		—		—		108
International	5		1		—		—		6
Mutual funds:
Domestic equity	—		37		—		—		37
International equity	—		—		—		—		—
Domestic debt	—		42		—		—		42
Collective trusts:
Domestic equity	—		—		—		281		281
International equity	—		—		—		228		228
Limited partnerships	—		—		—		199		199
Bonds, corporate	—		95		—		—		95
Bonds, government	—		50		—		—		50
Bonds, other	—		7		—		—		7
Real estate	—		—		—		83		83
Other	—		1		—		—		1
Total	$	115	$	234	$	—	$	791	$	1,140

(a) Certain assets that are measured at fair value using the NAV per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.

The fair value of Plan assets at December 30, 2017 are summarized as follows:



(millions)	Total Level 1		Total Level 2		Total Level 3		Total NAV (practical expedient)(a)		Total
Cash and cash equivalents	$	—	$	13	$	—	$	—	$	13
Corporate stock, common:
Domestic	141		—		—		—		141
International	8		—		—		—		8
Mutual funds:
Domestic equity	—		52		—		—		52
International equity	—		40		—		—		40
Domestic debt	—		52		—		—		52
Collective trusts:
Domestic equity	—		—		—		273		273
International equity	—		—		—		266		266
Limited partnerships	—		—		—		215		215
Bonds, corporate	—		117		—		—		117
Bonds, government	—		53		—		—		53
Bonds, other	—		9		—		51		60
Other	—		2		—		—		2
Total	$	149	$	338	$	—	$	805	$	1,292

(a) Certain assets that are measured at fair value using the NAV per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.

Postemployment [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]



(millions)	2018			2017
Change in accumulated benefit obligation
Beginning of year	$	43		$	87
Service cost	3			6
Interest cost	1			3
Actuarial (gain)loss	3			(45		)
Benefits paid	(8		)	(8		)
Amendments	—			—
Foreign currency adjustments	—			—
End of year	$	42		$	43
Funded status	$	(42	)	$	(43	)
Amounts recognized in the Consolidated Balance Sheet consist of
Other current liabilities	$	(5	)	$	(4	)
Other liabilities	(37		)	(39		)
Net amount recognized	$	(42	)	$	(43	)
Amounts recognized in accumulated other comprehensive income consist of
Net prior service cost	$	4		$	5
Net experience gain	(38		)	(46		)
Net amount recognized	$	(34	)	$	(41	)

Schedule of Net Benefit Costs [Table Text Block]



(millions)	2018			2017		2016
Service cost	$	3		$	6	$	7
Interest cost	1			3		3
Amortization of unrecognized prior service cost	1			1		1
Recognized net loss	(5		)	—		3
Postemployment benefit expense	$	—		$	10	$	14

Schedule of Expected Benefit Payments [Table Text Block]



(millions)	Postretirement		Postemployment
2019	$	80	$	5
2020	73		4
2021	72		4
2022	73		4
2023	73		4
2024-2028	361		18