Pensions and Other Post-Retirement Benefit Plans - Unfunded Amounts Recognized on Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Oct. 02, 2020	Jul. 03, 2020
Retirement Benefits [Abstract]
Current liabilities	$ 1	$ 1
Non-current liabilities	152	150
Net amount recognized	$ 153	$ 151

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant