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v3.24.3

Debt and Financing Arrangements - Long-Term Debt (Details) € in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2024 EUR (€) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 EUR (€)
Debt Instrument [Line Items] |  |  |  |
Other | $ 31 |  | $ 36 |
Long-term debt | 8,568 |  | 8,462 |
Debt issuance costs | 38 |  | 35 |
Net unamortized discount | 38 |  | 41 |
Net purchase accounting adjustments | (48) |  | (77) |
Total | 8,540 |  | 8,463 |
Less: Current portion | 536 |  | 645 |
Long-term debt | $ 8,004 |  | 7,818 |
3.625% Due in 2024 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 3.625% | 3.625% |  |
Gross long-term debt | $ 0 |  | 453 |
3.625% Due in 2024 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 3.625% | 3.625% |  |
Gross long-term debt | $ 0 |  | 31 |
3.90% Due in 2026 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 3.90% | 3.90% |  |
Gross long-term debt | $ 487 |  | 487 |
3.90% Due in 2026 | Tyco International Finance S.A. (TIFSA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 3.90% | 3.90% |  |
Gross long-term debt | $ 51 |  | 51 |
5.50% Due in 2029 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.50% | 5.50% |  |
Gross long-term debt | $ 700 |  | 0 |
1.75% Due in 2030 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 1.75% | 1.75% |  |
Gross long-term debt | $ 625 |  | 625 |
2.00% Due in 2031 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 2.00% | 2.00% |  |
Gross long-term debt | $ 500 |  | 500 |
4.90% Due in 2032 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.90% | 4.90% |  |
Gross long-term debt | $ 400 |  | 400 |
6.00% Due in 2036 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 6.00% | 6.00% |  |
Gross long-term debt | $ 342 |  | 342 |
6.00% Due in 2036 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 6.00% | 6.00% |  |
Gross long-term debt | $ 8 |  | 8 |
5.70% Due in 2041 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.70% | 5.70% |  |
Gross long-term debt | $ 190 |  | 190 |
5.70% Due in 2041 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.70% | 5.70% |  |
Gross long-term debt | $ 30 |  | 30 |
5.25% Due in 2042 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.25% | 5.25% |  |
Gross long-term debt | $ 155 |  | 155 |
5.25% Due in 2042 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.25% | 5.25% |  |
Gross long-term debt | $ 6 |  | 6 |
4.625% Due in 2044 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.625% | 4.625% |  |
Gross long-term debt | $ 444 |  | 444 |
4.625% Due in 2044 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.625% | 4.625% |  |
Gross long-term debt | $ 6 |  | 6 |
5.125% Due in 2045 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.125% | 5.125% |  |
Gross long-term debt | $ 253 |  | 372 |
5.125% Due in 2045 | Tyco International Finance S.A. (TIFSA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 5.125% | 5.125% |  |
Gross long-term debt | $ 23 |  | 23 |
6.95% Due in 2046 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 6.95% | 6.95% |  |
Gross long-term debt | $ 32 |  | 32 |
6.95% Due in 2046 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 6.95% | 6.95% |  |
Gross long-term debt | $ 4 |  | 4 |
4.50% Due in 2047 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.50% | 4.50% |  |
Gross long-term debt | $ 500 |  | 500 |
4.95% Due in 2064 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.95% | 4.95% |  |
Gross long-term debt | $ 341 |  | 341 |
4.95% Due in 2064 | Johnson Controls Inc. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.95% | 4.95% |  |
Gross long-term debt | $ 15 |  | 15 |
EURIBOR Plus 0.70% | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate | 0.70% |  |  |
Gross long-term debt | € |  | € 0 |  | € 159
1.375% Due in 2025 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 1.375% | 1.375% |  |
Gross long-term debt | € |  | € 472 |  | 448
1.375% Due in 2025 | Tyco International Finance S.A. (TIFSA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 1.375% | 1.375% |  |
Gross long-term debt | € |  | € 60 |  | 57
0.375% Due in 2027 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 0.375% | 0.375% |  |
Gross long-term debt | € |  | € 559 |  | 530
3.00 % Due in 2028 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 3.00% | 3.00% |  |
Gross long-term debt | € |  | € 670 |  | 636
1.00% Due in 2032 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 1.00% | 1.00% |  |
Gross long-term debt | € |  | € 559 |  | 530
4.25% Due in 2035 | Johnson Controls International plc (JCI) and Tyco Fire & Security Finance S.C.A. (TFSCA) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, interest rate, stated percentage | 4.25% | 4.25% |  |
Gross long-term debt | € |  | € 894 |  | € 849
TORF JPY Plus 0.40% Due in 2027 | Johnson Controls International plc |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate | 0.40% |  |  |
Gross long-term debt | $ 211 |  | $ 202 |

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