Acquisitions and Divestitures - 2016 Divestitures (Details)	1 Months Ended	3 Months Ended								4 Months Ended	5 Months Ended	12 Months Ended
	Apr. 30, 2016 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Apr. 29, 2016 USD ($) employee	Dec. 31, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Disposal group, deferred gain on disposal	$ 0
Sales revenue, goods, net		$ 3,271,000,000	$ 3,236,000,000	$ 3,261,000,000	$ 3,192,000,000	$ 2,967,000,000	$ 3,138,000,000	$ 3,234,000,000	$ 3,055,000,000			$ 12,960,000,000	$ 12,394,000,000	$ 12,413,000,000
LISI MEDICAL
Business Acquisition [Line Items]
Proceeds from divestiture of businesses	102,000,000
Proceeds from divestiture of businesses net of transaction costs	99,000,000
RTI
Business Acquisition [Line Items]
Sales revenue, goods, net										$ 20,000,000	$ 309,000,000
Number of employees | employee										330
Goodwill
Business Acquisition [Line Items]
Increase (decrease) intangible assets	$ (44,000,000)