XML 19 R5.htm IDEA: XBRL DOCUMENT v3.20.4
Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Net income $ 89 $ 5,364 $ 5,460
Other comprehensive income (loss):      
Net foreign currency translation gain (loss), net of tax (2) 6 (38)
Available-for-sale debt securities:      
Net unrealized gain, net of tax 43 54 43
Reclassifications to net income, net of tax (42) (1) 4
Net change 1 53 47
Cash flow hedges:      
Net unrealized gain (loss), net of tax (103) 72 112
Reclassification to net income, net of tax (41) (126) 87
Net change (144) (54) 199
Other comprehensive income (loss) (145) 5 208
Comprehensive income (loss) (56) 5,369 5,668
Comprehensive income (loss) attributable to noncontrolling interest (34) (22) 5
Comprehensive income (loss) attributable to Gilead $ (22) $ 5,391 $ 5,663