Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Aug. 02, 2020	Jul. 28, 2019	Jul. 29, 2018
Cash flows from operating activities:
Net earnings		$ 1,628	$ 211	$ 261
Adjustments to reconcile net earnings to operating cash flow
Impairment charges		0	393	748
Restructuring charges		9	31	62
Stock-based compensation		61	58	61
Amortization of inventory fair value adjustment from acquisition		0	0	42
Pension and postretirement benefit expense (income)		93	103	(187)
Depreciation and amortization		328	446	394
Deferred income taxes		(6)	14	(133)
Net (gain) loss on sales of businesses		(975)	32	0
Loss on extinguishment of debt		75	0	0
Investment losses	[1]	49	1	10
Other		101	24	24
Changes in working capital, net of acquisitions and divestitures
Accounts receivable		(30)	(11)	56
Inventories		(20)	36	(84)
Prepaid assets		(3)	(1)	27
Accounts payable and accrued liabilities		145	125	78
Other		(59)	(64)	(54)
Net cash provided by operating activities		1,396	1,398	1,305
Cash flows from investing activities:
Purchases of plant assets		(299)	(384)	(407)
Purchases of route businesses		(11)	(29)	(9)
Sales of route businesses		11	31	10
Business acquired, net of cash acquired		0	(18)	(6,772)
Sales of businesses, net of cash divested		2,537	539	0
Proceeds from sale of investment		30	0	0
Other		4	14	(19)
Net cash provided by (used) in investing activities		2,272	153	(7,197)
Cash flows from financing activities:
Short-term borrowings, including revolving line of credit		5,617	5,839	10,222
Short-term repayments, including revolving line of credit		(6,909)	(6,296)	(9,944)
Long-term borrowings		1,000	0	6,224
Long-term repayments		(499)	(702)	(63)
Dividends paid		(426)	(423)	(426)
Treasury stock purchases		0	0	(86)
Treasury stock issuances		23	0	0
Payments related to tax withholding for stock-based compensation		(12)	(8)	(23)
Payment related to extinguishment of debt		(1,769)	0	0
Repurchase of noncontrolling interest		0	0	(47)
Payments of debt issuance costs		(12)	(1)	(50)
Net cash provided by (used in) financing activities		(2,987)	(1,591)	5,807
Effect of exchange rate changes on cash		(1)	(7)	(8)
Net change in cash and cash equivalents		680	(47)	(93)
Cash and cash equivalents - beginning of period		31	49	37
Cash and cash equivalents discontinued operations - beginning of period		148	177	282
Cash and cash equivalents discontinued operations - end of period		0	148	177
Cash and cash equivalents - end of period		$ 859	$ 31	$ 49

[1] 2020 includes a loss of $45 related to Acre. See Note 16 for additional information.