v3.26.1
Accumulated Other Comprehensive Income (Loss) (Tables)
6 Months Ended
Mar. 31, 2026
Stockholders' Equity Note [Abstract]  
Changes in Accumulated Other Comprehensive Income, Net of Tax
The following table includes changes in AOCI attributable to Johnson Controls (in millions):
Three Months Ended
March 31,
Six Months Ended
March 31,
2026202520262025
Foreign currency translation adjustments
Balance at beginning of period$(633)$(1,041)$(638)$(956)
Aggregate adjustment for the period140 (90)145 (175)
Balance at end of period(493)(1,131)(493)(1,131)
Other
Balance at beginning of period(3)(4)(8)
Current period changes in fair value16 16 
Reclassification to income
(8)(2)(12)(4)
Net tax impact(1)— (1)(1)
Balance at end of period(1)(1)
Accumulated other comprehensive loss, end of period$(494)$(1,128)$(494)$(1,128)