Segment Information - Special Items (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
Before-tax [Abstract] | ||||
Integration and transaction-related costs | $ 114 | $ 128 | $ 405 | $ 318 |
Charges associated with litigation matters | (30) | 45 | 51 | 45 |
Total charges (benefits) associated with U.S. tax reform | 0 | 2 | 0 | 2 |
Total impact from special items, before-tax | 84 | 175 | 456 | 365 |
After-tax [Abstract] | ||||
Integration and transaction-related costs | 88 | 108 | 311 | 267 |
Charges associated with litigation matters | (23) | 35 | 41 | 35 |
Total charges (benefits) associated with U.S. tax reform | 0 | (5) | 0 | (5) |
Total impact of special items, after-tax | $ 65 | $ 138 | $ 352 | $ 297 |