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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 7,986		$ 7,986		$ 8,357
Amortization of intangible assets	109	$ 129	337	$ 385
Estimated annual amortization of intangible assets - Remainder of Fiscal Year	91		91
Estimated annual amortization of intangible assets - Year One	314		314
Estimated annual amortization of intangible assets - Year Two	287		287
Estimated annual amortization of intangible assets - Year Three	263		263
Estimated annual amortization of intangible assets - Year Four	238		238
Cordis Divestiture
Finite-Lived Intangible Assets [Line Items]
Disposal Group, Including Discontinued Operation, Intangible Assets	$ 391		$ 391