Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Share Repurchases (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Share Repurchase Program 2021
Share Repurchases [Line Items]
Shares of common stock repurchased	26	20	21				67
Value of common stock repurchased	$ 7,800	$ 6,233	$ 6,200				$ 20,233
Share Repurchase Program 2019
Share Repurchases [Line Items]
Shares of common stock repurchased					27	25
Value of common stock repurchased					$ 5,750	$ 5,270
Share Repurchase Program 2019 and 2021
Share Repurchases [Line Items]
Shares of common stock repurchased				25				77
Value of common stock repurchased				$ 5,750				$ 16,770