XML 52 R98.htm IDEA: XBRL DOCUMENT v3.19.3
Income Taxes - Summary of Temporary Differences of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Sep. 30, 2018
Deferred tax assets    
Foreign net operating loss carryforwards [1] $ 36 $ 39
Employee benefit obligations 29 28
Environmental, self-insurance and litigation reserves (net of receivables) 114 119
State net operating loss carryforwards (net of unrecognized tax benefits) [2] 38 48
Compensation accruals 28 31
Credit carryforwards (net of unrecognized tax benefits) [3] 10 10
Other items 38 32
Valuation allowances [4] (83) (79)
Total deferred tax assets 210 228
Deferred tax liabilities    
Goodwill and other intangibles [5] 243 269
Property, plant and equipment 207 217
Unremitted earnings 1 0
Total deferred tax liabilities 451 486
Net deferred tax liability $ (241) $ (258)
[1] Gross net operating loss carryforwards of $133 million will expire in future years beyond 2021 or have no expiration.
[2] Apportioned net operating loss carryforwards generated of $0.9 billion will expire in future years as follows: $48 million in 2020, $57 million in 2021 and the remaining balance in other future years.
[3] Credit carryforwards consist primarily of foreign tax credits of $4 million expiring in future years beyond 2020, and miscellaneous tax credits that will expire in 2024 or other future years.
[4] Valuation allowances primarily relate to certain state and foreign net operating loss carryforwards.
[5] The total gross amount of goodwill as of September 30, 2019 expected to be deductible for tax purposes is $8 million.