What was the difference in the total between Employee separation liability and Restructuring liability?
{"Debt obligations (1)": {"Total": 305927, "Year 1": 28430, "Years 2 - 3": 59509, "Years 4 - 5": 55708, "More than 5 years": 162280}, "Interest obligations (1)": {"Total": 28200, "Year 1": 6326, "Years 2 - 3": 11039, "Years 4 - 5": 8928, "More than 5 years": 1907}, "Operating lease obligations": {"Total": 48311, "Year 1": 10898, "Years 2 - 3": 14302, "Years 4 - 5": 9402, "More than 5 years": 13709}, "Pension and other post-retirement benefits (2)": {"Total": 94178, "Year 1": 6758, "Years 2 - 3": 15184, "Years 4 - 5": 18024, "More than 5 years": 54212}, "Employee separation liability": {"Total": 7640, "Year 1": 594, "Years 2 - 3": 674, "Years 4 - 5": 674, "More than 5 years": 5698}, "Restructuring liability": {"Total": 2181, "Year 1": 1869, "Years 2 - 3": 312, "Years 4 - 5": "\u2014", "More than 5 years": "\u2014"}, "Purchase commitments": {"Total": 31468, "Year 1": 31468, "Years 2 - 3": "\u2014", "Years 4 - 5": "\u2014", "More than 5 years": "\u2014"}, "Capital lease obligations": {"Total": 2049, "Year 1": 993, "Years 2 - 3": 888, "Years 4 - 5": 168, "More than 5 years": "\u2014"}, "Anti-trust fines and settlements (3)": {"Total": 34880, "Year 1": 21712, "Years 2 - 3": 10203, "Years 4 - 5": 2965, "More than 5 years": "\u2014"}, "Total": {"Total": 554834, "Year 1": 109048, "Years 2 - 3": 112111, "Years 4 - 5": 95869, "More than 5 years": 237806}}
employee_sep_liability = df["Employee separation liability"]["Total"]
restructuring_liability = df["Restructuring liability"]["Total"]
answer = employee_sep_liability - restructuring_liability