Segment and Geographical Information - Net Revenues and Long-Lived Assets by Geographical Areas (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
|
Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
Net revenues | $ 2,297 | $ 1,983 | $ 4,434 | $ 3,857 | |
Long-lived assets | 4,855 | 4,855 | $ 4,185 | ||
U.S. | |||||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
Net revenues | 1,170 | 982 | 2,200 | 1,885 | |
Long-lived assets | 4,393 | 4,393 | 3,784 | ||
United Kingdom | |||||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
Net revenues | 286 | 283 | 563 | 553 | |
Rest of world | |||||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
Net revenues | 841 | $ 718 | 1,671 | $ 1,419 | |
International | |||||
Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
Long-lived assets | $ 462 | $ 462 | $ 401 |