Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of intangible assets by class

Intangible assets consisted of the following:

(In millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value
March 31, 2019
Customer related intangible assets	$	2,642	$	1,330	$	1,312
Acquired software and technology	591		497		94
Trade names	120		72		48
Capitalized software development costs	846		331		515
Purchased software	266		118		148
Total	$	4,465	$	2,348	$	2,117

(In millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value
December 31, 2018
Customer related intangible assets	$	2,642	$	1,294	$	1,348
Acquired software and technology	591		490		101
Trade names	120		71		49
Capitalized software development costs	810		314		496
Purchased software	261		112		149
Total	$	4,424	$	2,281	$	2,143