Employee Termination, Asset Impairment and Other Charges - Expense Recognition (Details) - Business Realignment - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2021	Jan. 01, 2021
Restructuring Cost and Reserve [Line Items]
Employee termination and other charges:	$ 3	$ 2	$ 18	$ 25
Asset impairments and losses (gains) on disposal of assets	(1)	0	2	0
Total employee termination, asset impairment, and other charges	$ 2	$ 2	$ 20	$ 25

Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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