Dow Consolidated Balance Sheets Parentheticals - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Allowance for doubtful receivables	$ 54	$ 51
Investments carried at fair value	2,079	1,674
Other intangible assets, accumulated amortization	$ 4,725	$ 4,428
Common stock authorized (in shares)	5,000,000,000
Common stock, par value (in dollars per share)	$ 0.01
Common stock issued (in shares)	764,226,882	755,993,198
Treasury stock (in shares)	29,011,573	12,803,303