Segment Information Revenue by Geographical Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Segment Revenue by Geographic [Line Items]
Revenue	$ 43,968	$ 39,065
UNITED STATES
Segment Revenue by Geographic [Line Items]
Revenue	42,841	37,976
Non-US [Member]
Segment Revenue by Geographic [Line Items]
Revenue	1,130	1,093
Operating Segments
Segment Revenue by Geographic [Line Items]
Revenue	43,971	39,069
Corporate
Segment Revenue by Geographic [Line Items]
Revenue	$ (3)	$ (4)