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Accumulated Other Comprehensive Income (Loss) (Tables)
 3 Months Ended
Mar. 31, 2022
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
The following table summarizes changes in Accumulated other comprehensive income (loss) for the three months ended March 31, 2022 and 2021:

Three Months Ended
March 31,
In millions20222021
Beginning balance$(1,502)$(1,642)
Foreign currency translation adjustments during the period49 33 
Foreign currency translation adjustments reclassified to income
— 2 
Income taxes(23)(42)
Total foreign currency translation adjustments, net of tax26 (7)
Pension and other postretirement benefit adjustments reclassified to income
6 13 
Income taxes(1)(2)
Total pension and other postretirement benefit adjustments, net of tax
5 11 
Ending balance$(1,471)$(1,638)