Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Indefinite-Lived Intangible Assets, Gross	$ 17	$ 17
Indefinite-Lived Intangible Assets, Accumulated Amortization	0	0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	17	17
Finite-Lived Intangible Assets, Gross	662	625
Finite-Lived Intangible Assets, Accumulated Amortization	250	228
Finite-Lived Intangible Assets, Net	412	397
Total Intangibles, Gross	679	642
Total Intangibles, Accumulated Amortization	250	228
Intangible Assets, Net (Excluding Goodwill)	429	414
Customer Relationships
Finite-Lived Intangible Assets, Gross	506	473
Finite-Lived Intangible Assets, Accumulated Amortization	158	141
Finite-Lived Intangible Assets, Net	348	332
Trademarks And Patents
Finite-Lived Intangible Assets, Gross	46	45
Finite-Lived Intangible Assets, Accumulated Amortization	38	36
Finite-Lived Intangible Assets, Net	8	9
Non-Compete Agreements
Finite-Lived Intangible Assets, Gross	14	14
Finite-Lived Intangible Assets, Accumulated Amortization	8	8
Finite-Lived Intangible Assets, Net	6	6
Other Intangible Assets
Finite-Lived Intangible Assets, Gross	96	93
Finite-Lived Intangible Assets, Accumulated Amortization	46	43
Finite-Lived Intangible Assets, Net	50	50
Trademarks
Indefinite-Lived Intangible Assets, Gross	17	17
Indefinite-Lived Intangible Assets, Accumulated Amortization	0	0
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 17	$ 17