Pension And Postretirement Benefits (Tables)

12 Months Ended

Jul. 29, 2018

Defined Benefit Plan Disclosure [Line Items]

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

Change in benefit obligation:

	Pension						Postretirement
	2018			2017			2018			2017
Obligation at beginning of year	$	2,450		$	2,626		$	276		$	313
Service cost	24			26			1			1
Interest cost	74			86			7			10
Actuarial gain	(110		)	(134		)	(16		)	(14		)
Participant contributions	—			—			1			1
Plan amendments	2			—			(11		)	(12		)
Benefits paid	(165		)	(164		)	(26		)	(26		)
Medicare subsidies	—			—			3			3
Other	(2		)	(3		)	—			—
Special termination benefits	2			—			—			—
Curtailment	(2		)	—			—			—
Foreign currency adjustment	(16		)	13			—			—
Benefit obligation at end of year	$	2,257		$	2,450		$	235		$	276

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

Net amounts recognized in the Consolidated Balance Sheets:

	Pension				Postretirement
	2018		2017		2018		2017
Other assets	$	61	$	8	$	—	$	—
Accrued liabilities	14		14		29		29
Other liabilities	150		261		206		247
Net amounts recognized	$	103	$	267	$	235	$	276

Amounts recognized in accumulated other comprehensive income (loss) consist of:	Pension					Postretirement
	2018			2017		2018		2017
Prior service (cost) credit	$	(2	)	$	—	$	67	$	83

Schedule of Assumptions Used [Table Text Block]

Weighted-average assumptions used to determine benefit obligations at the end of the year:

	Pension		Postretirement
	2018	2017	2018	2017
Discount rate	4.15%	3.74%	4.06%	3.45%
Rate of compensation increase	3.21%	3.24%	3.25%	3.25%

Schedule of Expected Benefit Payments [Table Text Block]

Estimated future benefit payments are as follows:

	Pension		Postretirement
2019	$	173	$	29
2020	$	167	$	28
2021	$	168	$	26
2022	$	163	$	25
2023	$	159	$	24
2024-2028	$	777	$	97

Pension Plan, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

Components of net benefit expense (income) were as follows:

	Pension
	2018			2017			2016
Service cost	$	24		$	26		$	26
Interest cost	74			86			98
Expected return on plan assets	(144		)	(144		)	(147		)
Recognized net actuarial (gain) loss	(104		)	(198		)	302
Special termination benefits	2			—			—
Curtailment gains	(2		)	—			—
Net periodic benefit expense (income)	$	(150	)	$	(230	)	$	279

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

Change in the fair value of pension plan assets:

	2018			2017
Fair value at beginning of year	$	2,183		$	2,111
Actual return on plan assets	137			208
Employer contributions	5			5
Benefits paid	(155		)	(154		)
Foreign currency adjustment	(16		)	13
Fair value at end of year	$	2,154		$	2,183

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

The following table provides information for pension plans with accumulated benefit obligations in excess of plan assets:

	2018		2017
Projected benefit obligation	$	249	$	2,270
Accumulated benefit obligation	$	241	$	2,232
Fair value of plan assets	$	85	$	1,995

Schedule of Assumptions Used [Table Text Block]

Weighted-average assumptions used to determine net periodic benefit cost for the years ended:

	Pension
	2018	2017	2016
Discount rate	3.74%	3.39%	4.19%
Expected return on plan assets	6.84%	7.09%	7.35%
Rate of compensation increase	3.24%	3.25%	3.29%

Schedule of Allocation of Plan Assets [Table Text Block]

Our year-end pension plan weighted-average asset allocations by category were:

	Strategic Target	2018	2017
Equity securities	42%	42%	48%
Debt securities	46%	46%	40%
Real estate and other	12%	12%	12%
Total	100%	100%	100%

Pension plan assets are categorized based on the following fair value hierarchy:

• Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

• Level 2: Inputs other than quoted prices included in Level 1 that are observable for the asset or liability through corroboration with observable market data.

• Level 3: Unobservable inputs, which are valued based on our estimates of assumptions that market participants would use in pricing the asset or liability.

The following table presents our pension plan assets by asset category at July 29, 2018, and July 30, 2017:

	Fair Value as of July 29, 2018			Fair Value Measurements at July 29, 2018 Using Fair Value Hierarchy							Fair Value as of July 30, 2017			Fair Value Measurements at July 30, 2017 Using Fair Value Hierarchy
				Level 1		Level 2			Level 3					Level 1		Level 2			Level 3
Short-term investments	$	61		$	29	$	32		$	—	$	46		$	35	$	11		$	—
Equities:
U.S.	284			284		—			—		338			338		—			—
Non-U.S.	230			230		—			—		290			290		—			—
Corporate bonds:
U.S.	597			—		597			—		537			—		537			—
Non-U.S.	138			—		138			—		123			—		123			—
Government and agency bonds:
U.S.	70			—		70			—		60			—		60			—
Non-U.S.	33			—		33			—		31			—		31			—
Municipal bonds	61			—		61			—		58			—		58			—
Mortgage and asset backed securities	15			—		15			—		8			—		8			—
Real estate	10			4		—			6		17			10		—			7
Hedge funds	34			—		—			34		38			—		—			38
Derivative assets	8			—		8			—		9			—		9			—
Derivative liabilities	(4		)	—		(4		)	—		(10		)	—		(10		)	—
Total assets at fair value	$	1,537		$	547	$	950		$	40	$	1,545		$	673	$	827		$	45
Investments measured at net asset value:
Short-term investments	21										31
Commingled funds:
Equities	310										332
Fixed income	31										30
Blended	85										86
Real estate	89										84
Hedge funds	95										103
Total investments measured at net asset value:	631										666
Other items to reconcile to fair value of plan assets	(14		)								(28		)
Total pension plan assets at fair value	$	2,154									$	2,183

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

The following table summarizes the changes in fair value of Level 3 investments for the years ended July 29, 2018, and July 30, 2017:

	Real Estate			Hedge Funds			Total
Fair value at July 30, 2017	$	7		$	38		$	45
Actual return on plan assets	2			2			4
Purchases	—			—			—
Sales	(3		)	(6		)	(9		)
Settlements	—			—			—
Transfers out of Level 3	—			—			—
Fair value at July 29, 2018	$	6		$	34		$	40

	Real Estate			Hedge Funds			Total
Fair value at July 31, 2016	$	6		$	45		$	51
Actual return on plan assets	1			2			3
Purchases	1			1			2
Sales	(1		)	(10		)	(11		)
Settlements	—			—			—
Transfers out of Level 3	—			—			—
Fair value at July 30, 2017	$	7		$	38		$	45

Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]

The following tables present additional information about the pension plan assets valued using net asset value as a practical expedient within the fair value hierarchy table:

	2018		2017
	Fair Value		Fair Value		Redemption Frequency		Redemption Notice Period Range
Short-term investments	$	21	$	31	Daily		1 Day
Commingled funds:
Equities	310		332		Daily,	Monthly	2	to	60 Days
Fixed income	31		30		Daily		1 Day
Blended	85		86		Primarily Daily		1	to	20 Days
Real estate funds	89		84		Quarterly		45	to	90 Days
Hedge funds(1)	95		103		Monthly		5	to	30 Days
Total	$	631	$	666

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⁽¹⁾  Includes a fund valued at $2 in 2017 which was substantially liquidated in 2018.

Other Postretirement Benefit Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

	Postretirement
	2018			2017			2016
Service cost	$	1		$	1		$	1
Interest cost	7			10			15
Amortization of prior service credit	(27		)	(25		)	(1		)
Recognized net actuarial (gain) loss	(16		)	(14		)	23
Net periodic benefit expense (income)	$	(35	)	$	(28	)	$	38

Schedule of Health Care Cost Trend Rates [Table Text Block]

Assumed health care cost trend rates at the end of the year:

	2018	2017
Health care cost trend rate assumed for next year	6.75%	7.25%
Rate to which the cost trend rate is assumed to decline (ultimate trend rate)	4.50%	4.50%
Year that the rate reaches the ultimate trend rate	2023	2023

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

A one-percentage-point increase or decrease in assumed health care costs would not significantly impact 2018 reported service and interest cost nor the 2018 accumulated benefit obligation.