The following table disaggregates our product sales by product and geographic region and disaggregates our royalty, contract and other revenues by geographic region for the three months ended March 31, 2018 and 2017. The information for the three months ended March 31, 2017 has not been adjusted in accordance with our modified retrospective adoption of Topic 606 and continues to be reported in accordance with our historical accounting under Topic 605.



	Three Months Ended March 31, 2018								Three Months Ended March 31, 2017
(In millions)	U.S.		Europe		Other International		Total		U.S.		Europe		Other International		Total
Antiviral products:
Biktarvy	$	35	$	—	$	—	$	35	$	—	$	—	$	—	$	—
Descovy	274		75		12		361		209		37		5		251
Genvoya	853		186		43		1,082		669		87		13		769
Odefsey	279		58		5		342		203		23		1		227
Atripla	228		51		35		314		316		94		42		452
Complera/Eviplera	67		109		14		190		112		125		16		253
Stribild	133		29		12		174		226		67		16		309
Truvada	507		97		48		652		464		189		61		714
Vemlidy	47		3		8		58		11		—		—		11
Viread	7		30		60		97		117		71		72		260
Epclusa	269		198		69		536		735		138		19		892
Harvoni	234		56		58		348		926		243		202		1,371
Vosevi	86		16		5		107		—		—		—		—
Other antiviral	4		13		62		79		41		110		181		332
Other products:
Yescarta	40		—		—		40		—		—		—		—
Zydelig	14		18		1		33		15		19		1		35
Letairis	204		—		—		204		211		—		—		211
Ranexa	195		—		—		195		153		—		—		153
AmBisome	17		56		34		107		9		52		31		92
Other	34		10		3		47		33		11		1		45
Total product sales	3,527		1,005		469		5,001		4,450		1,266		661		6,377
Royalty, contract and other revenues	20		52		15		87		19		93		16		128
Total revenues	$	3,547	$	1,057	$	484	$	5,088	$	4,469	$	1,359	$	677	$	6,505