BENEFIT PLANS - Net Periodic Benefit (Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 31, 2021
Pension Benefits
Net Periodic Benefit (Income) Cost
Expected return on plan assets	$ (95)	$ (82)	$ (104)
Interest cost	63	38	37
Amortization of prior service cost (credit)	0	0	0
Amortization of net actuarial loss (gain)	0	1	1
Settlement gain	0	0	0
Net periodic benefit (income) cost	$ (32)	$ (43)	$ (66)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost
Defined benefit plan, net periodic benefit (cost) credit, settlement gain (loss), statement of income or comprehensive income			Net periodic benefit income, excluding service cost
Other Changes in Plan Assets and Benefits Obligations Recognized in Other Comprehensive (Loss) Income
Net actuarial loss (gain)	$ 29	$ 59	$ (225)
Prior service cost	0	0	0
Amortization of prior service (cost) benefit	0	0	0
Amortization of net actuarial (gain) loss	0	0	(1)
Total expense (benefit) recognized in Other comprehensive (loss) income	29	59	(226)
Total (benefit) expense recognized in net periodic benefit cost (income) and Other comprehensive (loss) income	(3)	16	(292)
Other Postretirement Benefits
Net Periodic Benefit (Income) Cost
Expected return on plan assets	0	0	0
Interest cost	0	0	0
Amortization of prior service cost (credit)	3	3	(1)
Amortization of net actuarial loss (gain)	0	0	(1)
Settlement gain	0	0	(17)
Net periodic benefit (income) cost	$ 3	$ 3	$ (19)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]			Net periodic benefit income, excluding service cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost	Net periodic benefit income, excluding service cost
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Net periodic benefit income, excluding service cost
Defined benefit plan, net periodic benefit (cost) credit, settlement gain (loss), statement of income or comprehensive income		Net periodic benefit income, excluding service cost
Other Changes in Plan Assets and Benefits Obligations Recognized in Other Comprehensive (Loss) Income
Net actuarial loss (gain)	$ (1)	$ (3)	$ (8)
Prior service cost	0	0	25
Amortization of prior service (cost) benefit	(3)	(3)	3
Amortization of net actuarial (gain) loss	0	0	1
Total expense (benefit) recognized in Other comprehensive (loss) income	(4)	(6)	21
Total (benefit) expense recognized in net periodic benefit cost (income) and Other comprehensive (loss) income	$ (1)	$ (3)	$ 2