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Business Acquisitions and Divestitures - Divestitures and Other (Details) - USD ($) $ in Millions				12 Months Ended
	Apr. 02, 2025	Dec. 30, 2024	Oct. 31, 2022	Mar. 31, 2025	Mar. 31, 2023
Discontinued Operations Disclosures
Accumulated other comprehensive loss adjustment				$ 11	$ 6
PRISM Vision | Subsequent Event
Discontinued Operations Disclosures
Business acquisition, percentage of controlling interest in combined business	80.00%
Cash payment to acquire business	$ 850
PRISM Vision Physicians | PRISM Vision | Subsequent Event
Discontinued Operations Disclosures
Ownership percentage retained	20.00%
Canadian Retail Disposal Group | Disposed of by Sale
Discontinued Operations Disclosures
Cash proceeds from divestiture		$ 9
Noncash divestiture, amount of consideration received		$ 120
Noncash divestiture payable period (in years)		6 years
Divested assets		$ 741
Trade accounts payable		$ 125
European businesses, disposal group, losses (gains)				667
Accumulated other comprehensive loss in charge for remeasurement to fair value				$ 48
E.U. Businesses (Disposal Group) | Disposed of by Sale
Discontinued Operations Disclosures
Cash proceeds from divestiture			$ 892
Divested net assets			1,300
European businesses, disposal group, losses (gains)					$ (66)
Divested cash			319
Divested carrying value of noncontrolling interest held by minority shareholders			382
Accumulated other comprehensive loss adjustment			$ 153

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