Discontinued Operations and Disposal Groups (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2023	Sep. 30, 2022
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue	$ 1,113	$ 1,317
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	731	910
Disposal Group, Including Discontinued Operation, General and Administrative Expense	150	162
Gain (loss) on sale of business	(2,780)	0
Disposal Group, Including Discontinued Operations, Other (income) deductions, net	44	12
Earnings before income taxes	2,968	233
Discontinued operations taxes	966	84
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	2,002	149
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	608			$ 815
Disposal Group, Including Discontinued Operation, Inventory, Current	541			530
Disposal Group, Including Discontinued Operation, Other Assets, Current	60			53
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	1,093			1,263
Disposal Group, Including Discontinued Operation, Goodwill, Current	720			718
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	350			277
Disposal Group, Including Discontinued Operation, Assets	3,372			3,656
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current [Abstract]	733			812
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	467			536
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	151			167
Disposal Group, Including Discontinued Operation, Liabilities	1,351			1,515
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations	116	146
Cash Provided by (Used in) Investing Activities, Discontinued Operations	2,953	(44)
InSinkErator [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price	3,000
Disposal Group, Pre-tax earnings				152
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	2,800
(Loss) on sale of business, net of tax	2,100
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue				630
Discontinued Operation, Tax Effect of Discontinued Operation	660
Climate Technologies (excluding Therm-O-Disc)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Pre-tax earnings				1,000
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue	1,064	1,079		5,000
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	702	762
Disposal Group, Including Discontinued Operation, General and Administrative Expense	142	127
Gain (loss) on sale of business	0	0
Disposal Group, Including Discontinued Operations, Other (income) deductions, net	32	6
Earnings before income taxes	188	184
Discontinued operations taxes	313	39
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	(125)	145
Ceased Depreciation	27
Discontinued operations costs	27
Discontinued Operation, Tax Effect of Discontinued Operation	275
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	608			747
Disposal Group, Including Discontinued Operation, Inventory, Current	541			449
Disposal Group, Including Discontinued Operation, Other Assets, Current	60			49
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	1,093			1,122
Disposal Group, Including Discontinued Operation, Goodwill, Current	720			716
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	350			265
Disposal Group, Including Discontinued Operation, Assets	3,372			3,348
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current [Abstract]	733			752
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	467			475
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	151			154
Disposal Group, Including Discontinued Operation, Liabilities	1,351			1,381
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations	205	132
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(43)	(35)
Therm-O-Disc
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax				(486)
(Loss) on sale of business, net of tax				429
Therm-O-Disc &/or InSinkErator
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Revenue	49	238
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	29	148
Disposal Group, Including Discontinued Operation, General and Administrative Expense	8	35
Gain (loss) on sale of business	(2,780)	0
Disposal Group, Including Discontinued Operations, Other (income) deductions, net	12	6
Earnings before income taxes	2,780	49
Discontinued operations taxes	653	45
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax	2,127	4
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	0			68
Disposal Group, Including Discontinued Operation, Inventory, Current	0			81
Disposal Group, Including Discontinued Operation, Other Assets, Current	0			4
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	0			141
Disposal Group, Including Discontinued Operation, Goodwill, Current	0			2
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	0			12
Disposal Group, Including Discontinued Operation, Assets	0			308
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current [Abstract]	0			60
Disposal Group, Including Discontinued Operation, Other Liabilities, Current	0			61
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	0			13
Disposal Group, Including Discontinued Operation, Liabilities	0			$ 134
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Cash Provided by (Used in) Operating Activities, Discontinued Operations	(89)	14
Cash Provided by (Used in) Investing Activities, Discontinued Operations	$ 2,996	$ (9)
Forecast [Member] | Climate Technologies (excluding Therm-O-Disc)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			45.00%
Forecast [Member] | Climate Technologies (excluding Therm-O-Disc)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Divestiture of Businesses			$ 9,500
Purchase price			14,000
Proceeds from Sale and Collection of Notes Receivable			$ 2,250