Business Restructuring Charges - Summary of Restructuring Accrual Activity (Detail) - Jun. 30, 2015 - CareFusion [Member] - USD ($) $ in Millions	Total	Total
Restructuring Cost and Reserve [Line Items]
Assumed liability		$ 19
Charged to expense	$ 75	136
Cash payments		(51)
Non-cash settlements		(37)
Other adjustments		(18)
Ending balance	49	49
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Assumed liability		19
Charged to expense	53	87
Cash payments		(48)
Other adjustments		(9)
Ending balance	$ 49	49
Share-based Compensation [Member]
Restructuring Cost and Reserve [Line Items]
Charged to expense		37
Non-cash settlements		(37)
Other [Member]
Restructuring Cost and Reserve [Line Items]
Charged to expense		12
Cash payments		(3)
Other adjustments		$ (9)