Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000014693 (http://www.sec.gov/CIK)

Income Tax Disclosure [Abstract]	Period [Axis]
	2015-05-01 - 2016-04-30
Income Tax Disclosure [Abstract]
Domestic and Foreign income before Income taxes	The following table, based on the locations of the taxable entities from which sales were derived (rather than the location of customers), presents the U.S. and foreign components of our income before income taxes:   2014   2015   2016 United States $ 797   $ 912   $ 1,184 Foreign 150   90   305   $ 947   $ 1,002   $ 1,489
Deferred tax assets and liabilities	Deferred tax assets and liabilities as of the end of each of the last two years were as follows:   2015   2016 April 30,       Deferred tax assets:       Postretirement and other benefits $ 164   $ 183 Accrued liabilities and other 22   10 Inventories 12   26 Loss and credit carryforwards 46   39 Valuation allowance (27 )   (25 ) Total deferred tax assets, net 217   233 Deferred tax liabilities:       Intangible assets (207 )   (225 ) Property, plant, and equipment (61 )   (83 ) Other (31 )   (9 ) Total deferred tax liabilities (299 )   (317 ) Net deferred tax liability $ (82 )   $ (84 )
Total income tax expense	Our total income tax expense for each of the last three years was as follows:    2014   2015   2016 Current:           U.S. federal $ 243   $ 259   $ 347 Foreign 49   42   47 State and local 1   11   18   293   312   412 Deferred:           U.S. federal $ 3   $ 15   $ 24 Foreign (6 )   (11 )   (17 ) State and local (2 )   2   3   (5 )   6   10   $ 288   $ 318   $ 422
Reconciles our effective tax rate to the federal statutory tax rate in the United States	The following table reconciles our effective tax rate to the federal statutory tax rate in the United States:    Percent of Income Before Taxes   2014   2015   2016 U.S. federal statutory rate 35.0  %   35.0  %   35.0  % State taxes, net of U.S. federal tax benefit 0.7  %   1.0  %   1.0  % Income taxed at other than U.S. federal statutory rate (2.2 )%   (0.5 )%   (2.5 )% Tax benefit from U.S. manufacturing (2.8 )%   (2.5 )%   (2.4 )% Tax impact of sale of business —  %   —  %   (1.1 )% Amortization of deferred tax benefit from intercompany transactions (0.4 )%   (1.6 )%   (1.6 )% Other, net 0.2  %   0.3  %   (0.1 )% Effective rate 30.5  %   31.7  %   28.3  %
Reconciliation of ending and beginning unrecognized tax benefits	A reconciliation of the beginning and ending unrecognized tax benefits follows:    2014   2015   2016 Unrecognized tax benefits at beginning of year $ 11   $ 11   $ 13 Additions for tax positions provided in prior periods 1   2   1 Additions for tax positions provided in current period 1   1   — Decreases for tax positions provided in prior years (1 )   (1 )   (4 ) Settlements of tax positions in the current period (1 )   —   (1 ) Lapse of statutes of limitations —   —   — Unrecognized tax benefits at end of year $ 11   $ 13   $ 9