XML 82 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
Litigation, Claims and Contingencies - Schedule of Progression of Activity in the Asbestos Reserve (Parenthetical) (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Sep. 30, 2017
Jun. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Ashland [Member]            
Asbestos claims [Roll Forward]            
Asbestos reserve $ 385 [1] $ 419 [1] $ 424 [1] $ 415 [1] $ 409 [1] $ 438
Ashland [Member] | Other Current Liabilities [Member]            
Asbestos claims [Roll Forward]            
Asbestos reserve 31 34        
Hercules [Member]            
Asbestos claims [Roll Forward]            
Asbestos reserve 289 [2] 323 [2] $ 328 [2] $ 321 [2] $ 311 [2] $ 329
Hercules [Member] | Other Current Liabilities [Member]            
Asbestos claims [Roll Forward]            
Asbestos reserve $ 12 $ 14        
[1] Included $31 million and $34 million classified in accrued expenses and other liabilities on the Condensed Consolidated Balance Sheets as of June 30, 2018 and September 30, 2017, respectively.
[2] Included $12 million and $14 million classified in accrued expenses and other liabilities on the Condensed Consolidated Balance Sheets as of June 30, 2018 and September 30, 2017, respectively.