What was the difference in the total expected payments between Non-U.S. Pension Plans and Post-Retirement Life Insurance Plan?
{"2020": {"U.S. Pension Plans": 15514, "Non-U.S. Pension Plans": 46, "Post-Retirement Life Insurance Plan": 393}, "2021": {"U.S. Pension Plans": 15399, "Non-U.S. Pension Plans": 54, "Post-Retirement Life Insurance Plan": 377}, "2022": {"U.S. Pension Plans": 15218, "Non-U.S. Pension Plans": 82, "Post-Retirement Life Insurance Plan": 362}, "2023": {"U.S. Pension Plans": 14983, "Non-U.S. Pension Plans": 69, "Post-Retirement Life Insurance Plan": 347}, "2024": {"U.S. Pension Plans": 14706, "Non-U.S. Pension Plans": 84, "Post-Retirement Life Insurance Plan": 332}, "2025-2029": {"U.S. Pension Plans": 68594, "Non-U.S. Pension Plans": 715, "Post-Retirement Life Insurance Plan": 1468}, "Total": {"U.S. Pension Plans": 144414, "Non-U.S. Pension Plans": 1050, "Post-Retirement Life Insurance Plan": 3279}}
post_retirement_life_insurance_plan = df["Total"]["Post-Retirement Life Insurance Plan"]
non_us_pension_plans = df["Total"]["Non-U.S. Pension Plans"]
answer = post_retirement_life_insurance_plan - non_us_pension_plans