Income Taxes (Summary Of Unrecognized Tax Benefits And Amount Of Interest And Penalties) (Details) (USD $)	Mar. 31, 2012		Jun. 30, 2011
Income Taxes [Abstract]
Unrecognized tax benefits	$ 671,900,000	[1],[2]	$ 746,800,000	[1],[2]
Portion that, if recognized, would reduce tax expense and effective tax rate	334,000,000		332,400,000
Accrued penalties and interest	203,600,000	[3]	267,200,000	[3]
Decrease in unrecognized tax benefits over the next 12 months, minimum	0
Decrease in unrecognized tax benefits over the next 12 months, maximum	$ 290,000,000

[1] The full amount of unrecognized tax benefits is included in deferred income taxes and other liabilities in the condensed consolidated balance sheets.

[2] It is reasonably possible that there could be a change in the amount of unrecognized tax benefits within the next 12 months due to activities of the Internal Revenue Service ("IRS") or other taxing authorities, including proposed assessments of additional tax, possible settlement of audit issues (primarily IRS audits for fiscal 2003 through 2005), reassessment of existing unrecognized tax benefits, or the expiration of applicable statutes of limitations. We estimate that the range of the possible change in unrecognized tax benefits within the next 12 months may be a net decrease of approximately zero to $290.0 million, exclusive of penalties and interest.

[3] Balances are gross amounts before any tax benefits and are included in deferred income taxes and other liabilities in the condensed consolidated balance sheets.