Debt - Extinguishments of Debt (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount	$ 1,717	$ 1,689
Notes1.450% due May 15, 2017
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount		$ 226
Debt instrument, interest rate		1.45%
Notes 1.800% due December 15, 2017
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount	$ 1,000	$ 250
Debt instrument, interest rate	1.80%	1.80%
Notes 5.0% due May 15, 2019
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount	$ 347	$ 153
Debt instrument, interest rate	5.00%	5.00%
Notes 6.375% Due August 1, 2019
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount	$ 326	$ 338
Debt instrument, interest rate	6.375%	6.375%
Notes 2.675% due December 15, 2019
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount		$ 125
Debt instrument, interest rate		2.675%
Notes 3.875% due May 15, 2024 Member
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount		$ 221
Debt instrument, interest rate		3.875%
Notes 3.734% Due December 15, 2024
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount		$ 375
Debt instrument, interest rate		3.734%
Care Fusion Corporation [Member] | Notes Issued by CareFusion
Extinguishment of Debt [Line Items]
Debt Instrument, Repurchased Face Amount	$ 44