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Business Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Millions				12 Months Ended
	Jun. 02, 2025	Apr. 01, 2025	Dec. 30, 2024	Mar. 31, 2025	Jun. 30, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill				$ 10,022	$ 11,365
Disposed of by sale | Canadian retail disposal group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from divestiture			$ 9
Noncash divestiture, amount of consideration received			$ 120
Noncash divestiture payable period (in years)			6 years
Divested net assets			$ 741
Trade accounts payable			$ 125
Canadian businesses held for sale				667
Accumulated other comprehensive loss in charge for remeasurement to fair value				$ 48
PRISM Vision LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business acquisition, percentage of controlling interest acquired		80.00%
Cash payments to acquire business		$ 874
Intangible assets		510
Goodwill		$ 432
PRISM Vision LLC | PRISM Vision Physicians
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage retained		20.00%
Core Ventures
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business acquisition, percentage of controlling interest acquired	70.00%
Cash payments to acquire business	$ 2,506
Intangible assets	2,310
Goodwill	$ 806
Core Ventures | FCS Physicians
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage retained	30.00%
Exercisable term	5 years
Initial fair value percentage	75.00%

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