Investments in and Advances to Unconsolidated Affiliates - Investments in and Advances to Unconsolidated Affiliates (Detail) - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
---|---|---|
Investments in and Advances to Affiliates [Line Items] | ||
Investments in and Advances to Affiliates | $ 69 | $ 52 |
NovaQuest Pharma Opportunities Fund lll, L.P [Member] | ||
Investments in and Advances to Affiliates [Line Items] | ||
Investments in and Advances to Affiliates | 43 | 40 |
NovaQuest Pharma Opportunities Fund lV, L.P [Member] | ||
Investments in and Advances to Affiliates [Line Items] | ||
Investments in and Advances to Affiliates | 6 | 2 |
Cenduit TM [Member] | ||
Investments in and Advances to Affiliates [Line Items] | ||
Investments in and Advances to Affiliates | 11 | 9 |
Other [Member] | ||
Investments in and Advances to Affiliates [Line Items] | ||
Investments in and Advances to Affiliates | $ 9 | $ 1 |