Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Aug. 01, 2021	Aug. 02, 2020	Jul. 28, 2019
Cash flows from operating activities:
Net earnings		$ 1,002	$ 1,628	$ 211
Adjustments to reconcile net earnings to operating cash flow
Impairment charges		0	0	393
Restructuring charges		21	9	31
Stock-based compensation		64	61	58
Pension and postretirement benefit expense (income)		(267)	93	103
Depreciation and amortization		317	328	446
Deferred income taxes		137	(6)	14
Net loss (gain) on sales of businesses		11	(975)	32
Loss on extinguishment of debt		0	75	0
Investment losses	[1]	0	49	1
Other		86	101	24
Changes in working capital, net of acquisitions and divestitures
Accounts receivable		(20)	(30)	(11)
Inventories		(77)	(20)	36
Prepaid assets		(28)	(3)	(1)
Accounts payable and accrued liabilities		(164)	145	125
Other		(47)	(59)	(64)
Net cash provided by operating activities		1,035	1,396	1,398
Cash flows from investing activities:
Purchases of plant assets		(275)	(299)	(384)
Purchases of route businesses		(2)	(11)	(29)
Sales of route businesses		10	11	31
Business acquired, net of cash acquired		0	0	(18)
Sales of businesses, net of cash divested		101	2,537	539
Proceeds from sale of investment		0	30	0
Other		8	4	14
Net cash provided by (used) in investing activities		(158)	2,272	153
Cash flows from financing activities:
Short-term borrowings, including commercial paper and revolving line of credit		320	5,617	5,839
Short-term repayments, including commercial paper and revolving line of credit		(580)	(6,909)	(6,296)
Long-term borrowings		0	1,000	0
Long-term repayments		(921)	(499)	(702)
Dividends paid		(439)	(426)	(423)
Treasury stock purchases		(36)	0	0
Treasury stock issuances		2	23	0
Payments related to tax withholding for stock-based compensation		(15)	(12)	(8)
Payments related to extinguishment of debt		0	(1,769)	0
Payments of debt issuance costs		0	(12)	(1)
Net cash used in financing activities		(1,669)	(2,987)	(1,591)
Effect of exchange rate changes on cash		2	(1)	(7)
Net change in cash and cash equivalents		(790)	680	(47)
Cash and cash equivalents - beginning of period (including discontinued operations)		859	179	226
Less cash and cash equivalents discontinued operations - end of period		0	0	148
Cash and cash equivalents - end of period		$ 69	$ 859	$ 31

[1] 2020 includes a loss of $45 related to Acre. See Note 14 for additional information.