Separation of Baxalta Incorporated - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jul. 02, 2015	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts payable and accrued liabilities		$ 2,572		$ 2,572		$ 2,612
Cash flows from operations – discontinued operations				(20)	$ 3
Transition Services Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reduction in marketing and administrative expense		11	$ 26	$ 47	79
Transition Services Agreement | Minimum | Manufacturing and supply agreement (MSA)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
The termination of service period				5 years
Transition Services Agreement | Maximum | Manufacturing and supply agreement (MSA)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
The termination of service period				10 years
Spinoff | Transition Services Agreement | Manufacturing and supply agreement (MSA)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		6	6	$ 18	31
Cost of sales		35	47	133	139
Baxalta Inc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash flows from operations – discontinued operations				(20)	3
Baxalta Inc | Discontinued Operations, Held-for-disposition
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts payable and accrued liabilities						$ 47
Net sales		$ 1	24	7	144
Cost of sales			$ 20	$ 5	$ 135
Spinoff
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of outstanding common stock distributed	80.50%
Percentage of common stock retained	19.50%
Common stock, shares outstanding	131,902,719
Record date for distribution	Jun. 17, 2015
Shares issued for each share held	1