Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Indefinite-Lived Intangible Assets

The following table summarizes our intangible assets, net (in millions):

	December 31, 2018										December 31, 2017
	Gross  Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount		Gross  Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived assets
Intangible asset - sofosbuvir	$	10,720	$	(3,554	)	$	—		$	7,166	$	10,720	$	(2,855	)	$	7,865
Intangible asset - axicabtagene ciloleucel (DLBCL)	6,200		(416		)	—			5,784		6,200		(72		)	6,128
Intangible asset - Ranexa	688		(678		)	—			10		688		(566		)	122
Other	1,096		(359		)	(3		)	734		546		(311		)	235
Total finite-lived assets	18,704		(5,007		)	(3		)	13,694		18,154		(3,804		)	14,350
Indefinite-lived assets - IPR&D	2,047		—			(3		)	2,044		2,750		—			2,750
Total intangible assets	$	20,751	$	(5,007	)	$	(6	)	$	15,738	$	20,904	$	(3,804	)	$	17,100

Schedule of Finite-Lived Intangible Assets

The following table summarizes our intangible assets, net (in millions):

	December 31, 2018										December 31, 2017
	Gross  Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount		Gross  Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived assets
Intangible asset - sofosbuvir	$	10,720	$	(3,554	)	$	—		$	7,166	$	10,720	$	(2,855	)	$	7,865
Intangible asset - axicabtagene ciloleucel (DLBCL)	6,200		(416		)	—			5,784		6,200		(72		)	6,128
Intangible asset - Ranexa	688		(678		)	—			10		688		(566		)	122
Other	1,096		(359		)	(3		)	734		546		(311		)	235
Total finite-lived assets	18,704		(5,007		)	(3		)	13,694		18,154		(3,804		)	14,350
Indefinite-lived assets - IPR&D	2,047		—			(3		)	2,044		2,750		—			2,750
Total intangible assets	$	20,751	$	(5,007	)	$	(6	)	$	15,738	$	20,904	$	(3,804	)	$	17,100

Schedule of Estimated Future Amortization Expense

As of December 31, 2018, estimated future amortization expense associated with our finite-lived intangible assets is as follows (in millions):

Fiscal Year	Amount
2019	$	1,149
2020	1,125
2021	1,124
2022	1,124
2023	1,124
Thereafter	8,048
Total	$	13,694