Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2011
Income Taxes
Minimum chance of tax benefit being realized upon settlement, as percentage	50.00%
Additional tax proposed in notices	$ 849.0
Amount CareFusion is liable under tax matters agreement in the event amount must be paid to the taxing authority	$ 591.5