Facility Lease Obligations (Details) $ in Millions	1 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($) floor	Nov. 30, 2012	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Operating Leased Assets [Line Items]
Facility lease obligation	$ 333			$ 333		$ 233
CONNECTICUT | Construction in Progress [Member]
Operating Leased Assets [Line Items]
Interest Expense, Lessee, Assets under Capital Lease			$ 4	11	$ 10
Facility lease obligation	135			135		136
MASSACHUSETTS
Operating Leased Assets [Line Items]
Facility lease obligation	$ 52			52
MASSACHUSETTS | Construction in Progress [Member]
Operating Leased Assets [Line Items]
Operating leases renewal term	10 years
Construction-in-process asset	$ 52			52
Number of leased floors (floor) | floor	6
Minimum [Member] | CONNECTICUT | Construction in Progress [Member]
Operating Leased Assets [Line Items]
Operating leases renewal term		10 years
Lonza Group AG
Operating Leased Assets [Line Items]
Unrecorded Unconditional Purchase Obligation, Purchases				52
Lonza Group AG | Construction in Progress [Member]
Operating Leased Assets [Line Items]
Construction-in-process asset	$ 176			176		118
Lonza Group AG | Facility Lease Obligation [Member]
Operating Leased Assets [Line Items]
Facility lease obligation	$ 157			157		$ 107
Inventories [Member] | Lonza Group AG
Operating Leased Assets [Line Items]
Unrecorded Unconditional Purchase Obligation, Purchases				45
Facility Lease Obligation [Member] | Lonza Group AG
Operating Leased Assets [Line Items]
Unrecorded Unconditional Purchase Obligation, Purchases				$ 7