Financial Data By Segment Financial Data By Geographic Area Segment Table (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
TOTAL REVENUES	$ 3,498.7	$ 3,847.4	$ 3,505.9	$ 3,323.2	$ 3,316.2	$ 3,696.0	$ 3,238.3	$ 3,077.2	$ 14,175.2	$ 13,327.7	$ 12,372.0
Total assets	41,887.7				38,849.1				41,887.7	38,849.1	38,886.9
United States [Member]
Segment Reporting Information [Line Items]
TOTAL REVENUES									12,327.6	11,493.3	10,753.4
Total assets	36,508.3				33,586.6				36,508.3	33,586.6	33,752.7
Europe [Member]
Segment Reporting Information [Line Items]
TOTAL REVENUES									1,236.8	1,242.2	1,086.4
Total assets	2,807.9				2,608.6				2,807.9	2,608.6	2,510.5
CANADA [Member]
Segment Reporting Information [Line Items]
TOTAL REVENUES									326.6	321.6	290.9
Total assets	1,950.5				2,073.1				1,950.5	2,073.1	2,068.6
Other [Member]
Segment Reporting Information [Line Items]
TOTAL REVENUES									284.2	270.6	241.3
Total assets	$ 621.0				$ 580.8				$ 621.0	$ 580.8	$ 555.1