The following table presents the change in benefit obligation, change in plan assets and components of funded status for the Company’s defined benefit pension and non-pension postretirement benefit plans for the years ended December 31: Table of Contents Pension Benefits Non-Pension Postretirement Benefits 2018 2017 2018 2017 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Change in Benefit Obligation Benefit obligation at beginning of year $ 238 $ 636 $ 242 $ 548 $ 5 $ 11 $ 6 $ 10 Service cost 3 17 3 16 — — — — Interest cost 7 10 7 9 — 1 — 1 Actuarial (gains) losses (12 ) (38 ) 6 (6 ) (1 ) 2 (1 ) — Foreign currency exchange rate changes — (32) — 77 — (1) — — Benefits paid (17 ) (11 ) (17 ) (11 ) — — — — Plan settlements — — — 2 (4) — — — Expenses paid from assets (3 ) — (3 ) — — — — — Employee contributions — 1 — 1 — — — — Benefit obligation at end of year $ 216 $ 583 $ 238 $ 636 $ — $ 13 $ 5 $ 11 Change in Plan Assets Fair value of plan assets at beginning of year $ 213 $ 412 $ 207 $ 349 $ — $ — $ — $ — Actual return on plan assets (8) (1) 26 4 — — — — Foreign currency exchange rate changes — (20 ) — 48 — — — — Employer contributions — 23 — 21 5 — 1 — Benefits paid (17 ) (11 ) (17 ) (11 ) — — (1 ) — Expenses paid from assets (3) — (3) — — — — — Plan settlements — — — — (5 ) — — — Employee contributions — 1 — 1 — — — — Fair value of plan assets at end of year 185 404 213 412 — — — — Funded status of the plan at end of year $ (31) $ (179) $ (25) $ (224) $ — $ (13) $ (5) $ (11) 74