pre_text: Other (Income) and Expense NM—Not meaningful Total consolidated other (income) and expense was income of $968 million in 2019 compared to expense of $1,152 million in 2018. The year-to-year change was primarily driven by: • Lower non-operating retirement-related costs ($957 million). Refer to “Retirement-Related Plans” for additional information. • Higher gains from divestitures ($833 million) reflected in Other; and • Higher net exchange gains (including derivative instruments) ($272 million). The company’s hedging programs help mitigate currency impacts in the Consolidated Income Statement. Operating (non-GAAP) other (income) and expense was $1,431 million of income in 2019 and increased $1,010 million compared to the prior-year period. The year-to-year change was primarily driven by the same factors excluding lower non-operating retirement-related costs.
table: ($ in millions)
table: For the year ended December 31: 2019 2018 Yr.-to-Yr. Percent Change
table: Other (income) and expense
table: Foreign currency transaction losses/(gains) $(279) $(427) (34.6)%
table: (Gains)/losses on derivative instruments 15 434 (96.6)
table: Interest income (349) (264) 32.2
table: Net (gains)/losses from securities and investment assets (32) (101) (67.9)
table: Retirement-related costs/(income) 615 1,572 (60.9)
table: Other (937) (63) NM
table: Total consolidated other (income) and expense $(968) $1,152 NM
table: Non-operating adjustments
table: Amortization of acquired intangible assets (2) (2) 50.0%
table: Acquisition-related charges 154 0 NM
table: Non-operating retirement related costs/(income) (615) (1,572) (60.9)%
table: Operating (non-GAAP) other (income) and expense $(1,431) $(422) 239.4%
question: Analyse this data from a financial earnings document. What is the average Acquisition-related charges?