Amount of investment in equity method investee and investment in and advance to affiliate.

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Amount of noncurrent assets classified as other.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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-Publisher FASB
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Variable Interest Entity (Details) - USD ($) $ in Millions		12 Months Ended
Variable Interest Entity (Details) - USD ($) $ in Millions	Aug. 29, 2018	Jul. 28, 2019	Jul. 29, 2018	Feb. 29, 2016
Investments funded		$ 83
Other assets		127	$ 189
Other Commitments, Description	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:6px;padding-top:6px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On August 29, 2018, we provided notice of termination of the investment period and have </font><font style="font-family:inherit;font-size:10pt;">no</font><font style="font-family:inherit;font-size:10pt;"> obligation to make any further capital contributions to Acre for new investments, but are required to pay obligations made prior to the notice of termination, the management fee and permitted partnership expenses.</font></div></div>
Variable Interest Entity
Other assets		$ 76	$ 77
Total Commitment [Member]
Other Commitment				$ 125
Acre Venture Partners [Member]
LLC ownership percentage		99.80%