| Quarterly Information | 
Our revenue, segment operating profit, other income and (expense), net income, basic and diluted earnings per share on a quarterly basis are presented below (in millions, except per share amounts):
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|   | First Quarter |   | Second Quarter |   | Third Quarter |   | Fourth Quarter |  
|   | 2019 |   | 2018 |   | 2019 |   | 2018 |   | 2019 |   | 2018 |   | 2019 |   | 2018 |  
| Revenue: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| U.S. Domestic Package | $ | 10,480 | 
 |   | $ | 10,227 | 
 |   | $ | 11,150 | 
 |   | $ | 10,354 | 
 |   | $ | 11,455 | 
 |   | $ | 10,437 | 
 |   | $ | 13,408 | 
 |   | $ | 12,575 | 
 |  
| International Package | 3,459 | 
 |   | 3,533 | 
 |   | 3,505 | 
 |   | 3,602 | 
 |   | 3,494 | 
 |   | 3,478 | 
 |   | 3,762 | 
 |   | 3,829 | 
 |  
| Supply Chain & Freight | 3,221 | 
 |   | 3,353 | 
 |   | 3,393 | 
 |   | 3,500 | 
 |   | 3,369 | 
 |   | 3,529 | 
 |   | 3,398 | 
 |   | 3,444 | 
 |  
| Total revenue | 17,160 | 
 |   | 17,113 | 
 |   | 18,048 | 
 |   | 17,456 | 
 |   | 18,318 | 
 |   | 17,444 | 
 |   | 20,568 | 
 |   | 19,848 | 
 |  
| Operating Profit: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| U.S. Domestic Package | 666 | 
 |   | 756 | 
 |   | 1,208 | 
 |   | 939 | 
 |   | 1,216 | 
 |   | 949 | 
 |   | 1,074 | 
 |   | 999 | 
 |  
| International Package | 528 | 
 |   | 594 | 
 |   | 663 | 
 |   | 618 | 
 |   | 667 | 
 |   | 536 | 
 |   | 799 | 
 |   | 781 | 
 |  
| Supply Chain & Freight | 200 | 
 |   | 170 | 
 |   | 272 | 
 |   | 216 | 
 |   | 245 | 
 |   | 242 | 
 |   | 260 | 
 |   | 224 | 
 |  
| Total operating profit  | 1,394 | 
 |   | 1,520 | 
 |   | 2,143 | 
 |   | 1,773 | 
 |   | 2,128 | 
 |   | 1,727 | 
 |   | 2,133 | 
 |   | 2,004 | 
 |  
| Total Other Income and (Expense) | $ | 46 | 
 |   | $ | 141 | 
 |   | $ | 61 | 
 |   | $ | 153 | 
 |   | $ | 78 | 
 |   | $ | 162 | 
 |   | $ | (2,331 | ) |   | $ | (1,461 | ) |  
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Net Income  | $ | 1,111 | 
 |   | $ | 1,345 | 
 |   | $ | 1,685 | 
 |   | $ | 1,485 | 
 |   | $ | 1,750 | 
 |   | $ | 1,508 | 
 |   | $ | (106 | ) |   | $ | 453 | 
 |  
| Net Income Per Share: |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Basic | $ | 1.28 | 
 |   | $ | 1.55 | 
 |   | $ | 1.95 | 
 |   | $ | 1.71 | 
 |   | $ | 2.03 | 
 |   | $ | 1.74 | 
 |   | $ | (0.12 | ) |   | $ | 0.52 | 
 |  
| Diluted | $ | 1.28 | 
 |   | $ | 1.55 | 
 |   | $ | 1.94 | 
 |   | $ | 1.71 | 
 |   | $ | 2.01 | 
 |   | $ | 1.73 | 
 |   | $ | (0.12 | ) |   | $ | 0.52 | 
 | 
 Our quarterly results were impacted by transformation strategy costs, legal contingencies and expenses and defined benefit plan mark-to-market charges. The table below presents the impact on operating profit and other income and (expense) for each period. 
|  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| (in millions, except per share amounts) | First Quarter |   | Second Quarter |   | Third Quarter |   | Fourth Quarter |  
|   | 2019 |   | 2018 |   | 2019 |   | 2018 |   | 2019 |   | 2018 |   | 2019 |   | 2018 |  
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Impact to Operating Profit |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Transformation Strategy - Employee Benefits | $ | 106 | 
 |   | $ | — | 
 |   | $ | 2 | 
 |   | $ | 192 | 
 |   | $ | 41 | 
 |   | $ | 70 | 
 |   | $ | 17 | 
 |   | $ | — | 
 |  
| Transformation Strategy - Other Costs | 17 | 
 |   | — | 
 |   | 19 | 
 |   | 71 | 
 |   | 22 | 
 |   | 27 | 
 |   | 31 | 
 |   | — | 
 |  
| Legal Contingencies and Expenses | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | — | 
 |   | 97 | 
 |   | — | 
 |  
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Allocation of Matters Impacting Operating Profit to Segments |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| U.S. Domestic Package | $ | 28 | 
 |   | — | 
 |   | 18 | 
 |   | 196 | 
 |   | 26 | 
 |   | 39 | 
 |   | 133 | 
 |   | — | 
 |  
| International Package | 84 | 
 |   | — | 
 |   | 2 | 
 |   | 36 | 
 |   | 26 | 
 |   | 40 | 
 |   | 10 | 
 |   | — | 
 |  
| Supply Chain & Freight | 11 | 
 |   | — | 
 |   | 1 | 
 |   | 31 | 
 |   | 11 | 
 |   | 18 | 
 |   | 2 | 
 |   | — | 
 |  
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Impact to Other Income and (Expense) |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |  
| Defined Benefit Plan Mark-to-Market Charges | $ | — | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | — | 
 |   | $ | 2,387 | 
 |   | $ | 1,627 | 
 | 
 |