Commitments and Contingencies - Commercial Litigation (Details)	9 Months Ended
	Sep. 30, 2016 USD ($) patent claim
Commercial Litigation - Andover Healthcare
Loss contingencies
Accrued loss contingency reserve	$ 0
Commercial Litigation - TransWeb Corporation
Loss contingencies
Payment of legal judgment	$ 27,000,000
Number of counts jury did not rule in favor of Transweb | claim	1
Number of 3M patents unenforceable due to inequitable conduct | patent	2