Acquisitions - Additional Information (Detail) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) board_member	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)
Schedule Of Business Acquisitions And Divestitures [Line Items]
Goodwill			$ 4,304		$ 4,304		$ 3,951
Previously held equity interest	$ 15
Nonoperating Income (Expense)
Schedule Of Business Acquisitions And Divestitures [Line Items]
Gain on remeasurement of previously-held interest in Elara			$ 0	$ 0	$ 7	$ 0
REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Dilution of interest		0.20%
Ownership interest after all transactions		61.40%
Elara
Schedule Of Business Acquisitions And Divestitures [Line Items]
Cash payments		$ 69
Acquired finite-lived intangibles		19
Goodwill		113
Consideration transferred		138
Fair value of noncontrolling interest		37
Fair value of equity interest in acquiree		$ 22
Increase in equity interest	22.10%	39.00%
Number of board of directors | board_member		9
Tangible liabilities		$ 5
Identifiable intangible assets		31
Elara | Trade names
Schedule Of Business Acquisitions And Divestitures [Line Items]
Indefinite-lived intangible assets		$ 12
Elara | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Current ownership interest	13.50%	59.70%
Increase in equity interest			0.80%		0.80%
Number of board seats held | board_member		8
Technology | Elara
Schedule Of Business Acquisitions And Divestitures [Line Items]
Weighted average useful life		5 years
Avail
Schedule Of Business Acquisitions And Divestitures [Line Items]
Cash payments		$ 36
Cash acquired		4
Contingent consideration		$ 8
Certain performance objective period		3 years
Earn-out liability		$ 4
Adjustment holdback		6
Goodwill		32
Avail | Technology
Schedule Of Business Acquisitions And Divestitures [Line Items]
Acquired finite-lived intangibles		$ 7
Weighted average useful life		5 years