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STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract] |  |
Sales | $ 533 | $ 576
Cost of sales | 380 | 424
Gross profit | 153 | 152
Selling, general and administrative expense | 120 | 143
Research and development expense | 16 | 17
Equity and other income | 0 | 1
Operating income (loss) | 17 | (7)
Net interest and other expense | 10 | 55
Other net periodic benefit income | 0 | 18
Net income (loss) on divestitures | 3 | (3)
Income (loss) from continuing operations before income taxes | 10 | (47)
Income tax expense (benefit) | (24) | 24
Income (loss) from continuing operations | 34 | (71)
Income (loss) from discontinued operations (net of income taxes) | (2) | 23
Net income (loss) | $ 32 | $ (48)
Basic earnings per share - Note M |  |
Income (loss) from continuing operations | $ 0.57 | $ (1.14)
Income (loss) from discontinued operations | (0.03) | 0.38
Net income (loss) | 0.54 | (0.76)
Diluted earnings per share - Note M |  |
Income (loss) from continuing operations | 0.56 | (1.14)
Income (loss) from discontinued operations | (0.03) | 0.38
Net income (loss) | $ 0.53 | $ (0.76)
COMPREHENSIVE INCOME (LOSS) |  |
Net income (loss) | $ 32 | $ (48)
Other comprehensive income (loss), net of tax |  |
Unrealized translation gain (loss) | 38 | (31)
Pension and postretirement obligation adjustment | 0 | (6)
Other comprehensive income (loss) | 38 | (37)
Comprehensive income (loss) | $ 70 | $ (85)

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