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Revenues (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) segment | Jun. 30, 2018 USD ($)
Revenue from Contract with Customer [Abstract] |  |  |  |
Number of operating segments | segment |  |  | 1 |
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | $ 5,871 | $ 6,059 | $ 11,428 | $ 11,613
Product sales [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 5,574 | 5,679 | 10,860 | 11,022
Product sales [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 4,142 | 4,367 | 8,133 | 8,514
Product sales [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 1,432 | 1,312 | 2,727 | 2,508
Enbrel® (etanercept) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 1,363 | 1,302 | 2,514 | 2,407
Enbrel® (etanercept) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 1,315 | 1,252 | 2,421 | 2,302
Enbrel® (etanercept) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 48 | 50 | 93 | 105
Neulasta® (pegfilgrastim) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 824 | 1,100 | 1,845 | 2,255
Neulasta® (pegfilgrastim) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 719 | 948 | 1,612 | 1,957
Neulasta® (pegfilgrastim) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 105 | 152 | 233 | 298
Prolia® (denosumab) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 698 | 610 | 1,290 | 1,104
Prolia® (denosumab) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 458 | 396 | 848 | 716
Prolia® (denosumab) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 240 | 214 | 442 | 388
XGEVA® (denosumab) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 499 | 452 | 970 | 897
XGEVA® (denosumab) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 379 | 339 | 735 | 671
XGEVA® (denosumab) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 120 | 113 | 235 | 226
Aranesp® (darbepoetin alfa) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 436 | 472 | 850 | 926
Aranesp® (darbepoetin alfa) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 192 | 241 | 374 | 466
Aranesp® (darbepoetin alfa) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 244 | 231 | 476 | 460
KYPROLIS® (carfilzomib) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 267 | 263 | 512 | 485
KYPROLIS® (carfilzomib) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 166 | 151 | 320 | 288
KYPROLIS® (carfilzomib) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 101 | 112 | 192 | 197
EPOGEN® (epoetin alfa) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 223 | 250 | 442 | 494
EPOGEN® (epoetin alfa) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 223 | 250 | 442 | 494
EPOGEN® (epoetin alfa) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 0 | 0 | 0 | 0
Sensipar® / Mimpara® (cinacalcet) [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 122 | 420 | 335 | 917
Sensipar® / Mimpara® (cinacalcet) [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 43 | 330 | 178 | 739
Sensipar® / Mimpara® (cinacalcet) [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 79 | 90 | 157 | 178
Other products [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 1,142 | 810 | 2,102 | 1,537
Other products [Member] | US [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 647 | 460 | 1,203 | 881
Other products [Member] | ROW [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total product sales | 495 | 350 | 899 | 656
Other revenues [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Total revenues | $ 297 | $ 380 | $ 568 | $ 591

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