Segment Information Revenue From External Customers By Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Segment Revenue from External Customers by Geographic Area [Line Items]
Revenue	$ 57,445	$ 51,469	$ 112,208	$ 101,072
UNITED STATES
Segment Revenue from External Customers by Geographic Area [Line Items]
Revenue	56,241	50,333	109,798	98,810
Non-US [Member]
Segment Revenue from External Customers by Geographic Area [Line Items]
Revenue	1,207	1,137	2,416	2,266
Operating Segments
Segment Revenue from External Customers by Geographic Area [Line Items]
Revenue	57,448	51,470	112,214	101,076
Corporate
Segment Revenue from External Customers by Geographic Area [Line Items]
Revenue	$ (3)	$ (1)	$ (6)	$ (4)