Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Net Carrying Amount of Goodwill by Operating Segment

The changes in the net carrying amount of goodwill for the three months ended March 31, 2018 are as follows (in millions):

Balance as of December 31, 2017	$	8,358
Goodwill related to current year acquisitions	12
Goodwill related to prior year acquisitions	4
Foreign currency translation and other	176
Balance as of March 31, 2018	$	8,550

Schedule of Other Intangible Assets by Asset Class

Other intangible assets by asset class are as follows (in millions):

	March 31, 2018						December 31, 2017
	Gross Carrying Amount		Accumulated Amortization and Impairment		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization and Impairment		Net Carrying Amount
Customer related and contract based	$	2,615	$	1,496	$	1,119	$	2,550	$	1,415	$	1,135
Tradenames	1,052		589		463		1,047		533		514
Technology and other	426		346		80		416		332		84
Total	$	4,093	$	2,431	$	1,662	$	4,013	$	2,280	$	1,733

Schedule of Estimated Future Amortization Expense on Intangible Assets

The estimated future amortization for finite lived intangible assets as of March 31, 2018 is as follows (in millions):

Remainder of 2018	$	332
2019	430
2020	252
2021	151
2022	101
Thereafter	396
Total	$	1,662