Year Ended December 31, | 2014 | 2015 | 2016 | 2017 | 2018 | 2019–2023 | |||||||||||||||||
Pension benefit payments | $ | 471 | $ | 483 | $ | 512 | $ | 554 | $ | 558 | $ | 3,084 | |||||||||||
Other benefit payments1 | 59 | 62 | 64 | 65 | 66 | 346 | |||||||||||||||||
Total estimated benefit payments | $ | 530 | $ | 545 | $ | 576 | $ | 619 | $ | 624 | $ | 3,430 |
1 | The expected benefit payments for our other postretirement benefit plans are net of estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003. Federal subsidies are estimated to be approximately $8 million for the period 2014–2018, and $5 million for the period 2019–2023. |