Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011	Jun. 30, 2011
Income Taxes [Abstract]
Effective tax rate, continuing operations	32.20%	35.50%	31.70%	61.80%
Goodwill impairment charge				$ 258
Potential benefits which, if recognized, would affect the effective tax rate on earnings	56		56		68
Accrued interest and penalties related to uncertain tax positions	7		7		8
Interest and penalties included in income tax expense	$ 0	$ 1	$ (3)	$ (2)