Acquisitions (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Acquisitions, net of cash acquired	$ 4,296	$ 140
Sage Products
Business Acquisition [Line Items]
Total consideration	2,875
Physio Acquisition
Business Acquisition [Line Items]
Total consideration	1,299
Acquisitions, net of cash acquired	$ 1,299