Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Intangible Assets

Intangible assets consisted of:

	December 31, 2017				September 30, 2017
(Millions of dollars)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Developed technology	$	15,269	$	1,096	$	3,508	$	1,029
Customer relationships	4,559		621		3,393		564
Product rights	128		54		131		54
Trademarks	408		66		408		65
Patents and other	375		274		370		274
Amortized intangible assets	$	20,738	$	2,112	$	7,811	$	1,986
Unamortized intangible assets
Acquired in-process research and development	$	48			$	67
Trademarks	2				2
Unamortized intangible assets	$	50			$	69

Reconciliation of Goodwill by Business Segment

The following is a reconciliation of goodwill by business segment:

(Millions of dollars)	Medical				Life Sciences				Currently Unallocated			Total
Goodwill as of September 30, 2017	$	6,802			$	761			$	—		$	7,563
Acquisitions	9			(A)	76			(A)	15,054		(B)	15,139
Currency translation	(2		)		(2		)		—			(4		)
Goodwill as of December 31, 2017	$	6,809			$	836			$	15,054		$	22,699

(A) Represents goodwill recognized upon acquisitions which were not material individually or in the aggregate.

(B) The allocation of goodwill recognized upon the Company's acquisition of Bard to the Company's segments is pending finalization of the purchase allocation process. The goodwill will largely be allocated to the Company's new Interventional segment. Additional disclosures regarding the Bard acquisition are provided in Note 8.