Pension And Postretirement Benefits (Tables)

12 Months Ended

Jul. 30, 2017

Defined Benefit Plan Disclosure [Line Items]

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

Change in benefit obligation:



	Pension						Postretirement
	2017			2016			2017			2016
Obligation at beginning of year	$	2,626		$	2,569		$	313		$	392
Service cost	26			26			1			1
Interest cost	86			98			10			15
Actuarial (gain) loss	(134		)	210			(14		)	23
Participant contributions	—			—			1			1
Plan amendments	—			—			(12		)	(93		)
Benefits paid	(164		)	(116		)	(26		)	(30		)
Settlements	—			(160		)	—			—
Medicare subsidies	—			—			3			4
Other	(3		)	(6		)	—			—
Foreign currency adjustment	13			5			—			—
Benefit obligation at end of year	$	2,450		$	2,626		$	276		$	313

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

Net amounts recognized in the Consolidated Balance Sheets:



	Pension				Postretirement
	2017		2016		2017		2016
Other assets	$	8	$	—	$	—	$	—
Accrued liabilities	14		14		29		28
Other liabilities	261		501		247		285
Net amounts recognized	$	267	$	515	$	276	$	313



Amounts recognized in accumulated other comprehensive income (loss) consist of:	Postretirement
	2017		2016
Prior service credit	$	83	$	96

Schedule of Assumptions Used [Table Text Block]

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



	Pension		Postretirement
	2017	2016	2017	2016
Discount rate	3.74%	3.39%	3.45%	3.20%
Rate of compensation increase	3.24%	3.25%	3.25%	3.25%

Schedule of Expected Benefit Payments [Table Text Block]

Estimated future benefit payments are as follows:



	Pension		Postretirement
2018	$	175	$	29
2019	$	171	$	28
2020	$	162	$	27
2021	$	160	$	25
2022	$	161	$	24
2023-2027	$	801	$	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
	2017			2016			2015
Service cost	$	26		$	26		$	28
Interest cost	86			98			105
Expected return on plan assets	(144		)	(147		)	(173		)
Amortization of prior service credit	—			—			(1		)
Recognized net actuarial (gain) loss	(198		)	302			136
Curtailment loss	—			—			1
Net periodic benefit expense (income)	$	(230	)	$	279		$	96

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

Change in the fair value of pension plan assets:



	2017			2016
Fair value at beginning of year	$	2,111		$	2,316
Actual return on plan assets	208			54
Employer contributions	5			2
Benefits paid	(154		)	(106		)
Settlements	—			(160		)
Foreign currency adjustment	13			5
Fair value at end of year	$	2,183		$	2,111

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:



	2017		2016
Projected benefit obligation	$	2,270	$	2,434
Accumulated benefit obligation	$	2,232	$	2,385
Fair value of plan assets	$	1,995	$	1,933

Schedule of Assumptions Used [Table Text Block]

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



	Pension
	2017	2016	2015
Discount rate	3.39%	4.19%	4.33%
Expected return on plan assets	7.09%	7.35%	7.62%
Rate of compensation increase	3.25%	3.29%	3.30%

Schedule of Allocation of Plan Assets [Table Text Block]

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



	Strategic Target	2017	2016
Equity securities	47%	48%	51%
Debt securities	40%	40%	35%
Real estate and other	13%	12%	14%
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 30, 2017, and July 31, 2016:



	Fair Value as of July 30, 2017			Fair Value Measurements at July 30, 2017 Using Fair Value Hierarchy							Fair Value as of July 31, 2016			Fair Value Measurements at July 31, 2016 Using Fair Value Hierarchy
				Level 1		Level 2			Level 3					Level 1		Level 2			Level 3
Short-term investments	$	46		$	35	$	11		$	—	$	43		$	41	$	2		$	—
Equities:
U.S.	338			338		—			—		349			349		—			—
Non-U.S.	290			290		—			—		273			273		—			—
Corporate bonds:
U.S.	537			—		537			—		469			—		469			—
Non-U.S.	123			—		123			—		98			—		98			—
Government and agency bonds:
U.S.	60			—		60			—		49			—		49			—
Non-U.S.	31			—		31			—		29			—		29			—
Municipal bonds	58			—		58			—		67			—		67			—
Mortgage and asset backed securities	8			—		8			—		7			—		7			—
Real estate	17			10		—			7		19			13		—			6
Hedge funds	38			—		—			38		45			—		—			45
Derivative assets	9			—		9			—		6			—		6			—
Derivative liabilities	(10		)	—		(10		)	—		(7		)	—		(7		)	—
Total assets at fair value	$	1,545		$	673	$	827		$	45	$	1,447		$	676	$	720		$	51
Investments measured at net asset value:
Short-term investments	31										20
Commingled funds:
Equities	332										309
Fixed income	30										31
Blended	86										79
Real estate	84										108
Hedge funds	103										144
Total investments measured at net asset value:	666										691
Other items to reconcile to fair value of plan assets	(28		)								(27		)
Total pension plan assets at fair value	$	2,183									$	2,111

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 30, 2017, and July 31, 2016:



	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



	Real Estate			Hedge Funds		Total
Fair value at August 2, 2015	$	6		$	39	$	45
Actual return on plan assets	1			1		2
Purchases	—			5		5
Sales	(1		)	—		(1		)
Settlements	—			—		—
Transfers out of Level 3	—			—		—
Fair value at July 31, 2016	$	6		$	45	$	51

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:

2017

2016

Fair Value

Redemption Frequency

Redemption Notice Period Range

Fair Value

Redemption Frequency

Redemption Notice Period Range

Short-term investments

Daily

1 Day

Daily

1 Day

Commingled funds:

Equities

332

Daily,

Monthly

60 Days

309

Daily,

Monthly

60 Days

Fixed income

Daily

1 Day

Daily

1 Day

Blended

Primarily Daily

20 Days

Primarily Daily

1 Day

Real estate funds⁽¹⁾

Quarterly

90 Days

108

Primarily Quarterly

90 Days

Hedge funds⁽²⁾

103

Monthly

30 Days

144

Monthly,

Quarterly

65 Days

Total

666

691

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⁽¹⁾	Included real estate investments valued at $34 in 2016 for which a redemption queue was imposed by the investment manager increasing the redemption receipt period to up to 9 months after notice.


⁽²⁾	Includes a fund valued at $2 in 2017 and $45 in 2016 which is being liquidated. Distributions from the fund will be received as the underlying investments are liquidated which is estimated to occur by December 31, 2017.

Other Postretirement Benefit Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The curtailment loss of $1 in 2015 was related to a voluntary employee separation program and was included in Restructuring charges. See also Note 7.



	Postretirement
	2017			2016			2015
Service cost	$	1		$	1		$	2
Interest cost	10			15			15
Amortization of prior service credit	(25		)	(1		)	(1		)
Recognized net actuarial (gain) loss	(14		)	23			7
Curtailment loss	—			—			6
Net periodic benefit expense (income)	$	(28	)	$	38		$	29

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

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



	2017	2016
Health care cost trend rate assumed for next year	7.25%	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	2022

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

A one-percentage-point change in assumed health care costs would have the following effects on 2017 reported amounts:



	Increase		Decrease
Effect on service and interest cost	$	—	$	—
Effect on the 2017 accumulated benefit obligation	$	3	$	(3	)