Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended |
Mar. 31, 2021 | Mar. 31, 2020 |
Disaggregation of Revenue [Line Items] | | |
Net sales | $ 1,102 | $ 1,065 |
North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 635 | 550 |
Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 361 | 422 |
APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 112 | 95 |
Operating Segments | North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 635 | 550 |
Operating Segments | Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 361 | 422 |
Operating Segments | APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 112 | 95 |
Operating Segments | Supply Chain Services | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 992 | 977 |
Operating Segments | Supply Chain Services | North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 525 | 462 |
Operating Segments | Supply Chain Services | Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 364 | 424 |
Operating Segments | Supply Chain Services | APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 109 | 93 |
Operating Segments | Software Services | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 26 | 24 |
Operating Segments | Software Services | North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 20 | 20 |
Operating Segments | Software Services | Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 3 | 2 |
Operating Segments | Software Services | APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 3 | 2 |
Operating Segments | Prescription Management | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 112 | 84 |
Operating Segments | Prescription Management | North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 112 | 84 |
Operating Segments | Prescription Management | Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 0 | 0 |
Operating Segments | Prescription Management | APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 0 | 0 |
Eliminations | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (28) | (20) |
Eliminations | North America | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (22) | (16) |
Eliminations | Europe | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (6) | (4) |
Eliminations | APAC & Emerging Markets | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 0 | 0 |
Eliminations | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (6) | (2) |
Eliminations | Supply Chain Services | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | (6) | (2) |
Eliminations | Software Services | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | 0 | 0 |
Eliminations | Prescription Management | | |
Disaggregation of Revenue [Line Items] | | |
Net sales | $ 0 | $ 0 |