Working Capital Detail (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Components Of Working Capital Detail [Abstract]

Components of Working Capital Detail

Working Capital Detail

($ in millions)		2020	2019
Receivables
	Trade - net	$2,412	$2,479
	Equity affiliates	2	3
	Other - net	312	274
	Total	$2,726	$2,756
Inventories(1)
	Finished products	$1,021	$1,047
	Work in process	187	197
	Raw materials	490	431
	Supplies	37	35
	Total	$1,735	$1,710
Accounts payable and accrued liabilities
	Trade	$2,259	$2,098
	Accrued payroll	505	455
	Customer rebates	320	280
	Other postretirement and pension benefits	85	85
	Income taxes	46	46
	Other	577	532
	Total	$3,792	$3,496

(1)Inventories valued using the LIFO method of inventory valuation comprised 33% and 34% of total gross inventory values as of December 31, 2020 and 2019, respectively. If the FIFO method of inventory valuation had been used, inventories would have been $110 million and $124 million higher as of December 31, 2020 and 2019, respectively.