Consolidated Statements of Financial Position $ in Millions	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 € / shares	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2021 € / shares
Assets
Cash and cash equivalents	$ 1,207		$ 1,336
Accounts receivable - net	5,671		5,613
Inventories	2,425		2,057
Other current assets	1,050		992
Current assets	10,353		9,998
Property, plant and equipment - net	3,213		3,228
Goodwill	18,386		18,335
Other intangible assets - net	5,505		5,549
Investments in partially-owned affiliates	1,102		1,066
Noncurrent assets held for sale	159		156
Other noncurrent assets	3,504		3,558
Total assets	42,222		41,890
Liabilities and Equity
Short-term debt	392		8
Current portion of long-term debt	220		226
Accounts payable	4,083		3,746
Accrued compensation and benefits	926		1,008
Deferred revenue	1,845		1,637
Other current liabilities	2,521		2,473
Current liabilities	9,987		9,098
Long-term debt	7,437		7,506
Pension and postretirement benefits	499		628
Other noncurrent liabilities	5,809		5,905
Long-term liabilities	13,745		14,039
Commitments and contingencies (Note 22)
Ordinary shares, $0.01 par value	7		7
Ordinary A shares, €1.00 par value	0		0
Preferred shares, $0.01 par value	0		0
Ordinary shares held in treasury, at cost	(1,199)		(1,152)
Capital in excess of par value	17,150		17,116
Retained earnings	1,638		2,025
Accumulated other comprehensive loss	(347)		(434)
Shareholders' equity attributable to Johnson Controls	17,249		17,562
Noncontrolling interests	1,241		1,191
Total equity	18,490		18,753
Total liabilities and equity	$ 42,222		$ 41,890
Ordinary shares, par value | $ / shares	$ 0.01		$ 0.01
Preferred shares, par value | $ / shares	$ 0.01		$ 0.01
Common Class A [Member]
Ordinary shares, par value | € / shares		€ 1.00		€ 1.00