Discontinued Operations - By Disposal (Details) - USD ($) shares in Thousands, $ in Millions |
1 Months Ended | 3 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Feb. 27, 2015 |
Mar. 31, 2017 |
Apr. 30, 2015 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2015 |
Dec. 31, 2016 |
|
| Discontinued Operations | |||||||
| Proceeds from the sale of Mylan N.V. shares | $ 1,685 | ||||||
| After tax Gain | $ 16 | ||||||
| Mylan N. V. (Investee) | |||||||
| Discontinued Operations | |||||||
| Number of shares in investment sold | 44,000 | 40,250 | 44,000 | ||||
| Proceeds from the sale of Mylan N.V. shares | $ 1,685 | $ 1,700 | |||||
| Ownership interest (as a percent) | 4.80% | 14.00% | 4.80% | 14.00% | |||
| Developed markets branded generics pharmaceuticals business | Mylan N. V. (Investee) | Mylan | |||||||
| Discontinued Operations | |||||||
| Number of shares received for sale of business | 110,000 | ||||||
| Percentage of shares received for sale of business | 22.00% | ||||||
| Animal Health Business | |||||||
| Discontinued Operations | |||||||
| Proceeds from the disposition of business | 25 | $ 230 | |||||
| After tax Gain | $ 16 | $ 130 | |||||