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Other Deductions, Net (Schedule Of Other Deductions, Net) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Other deductions, net [Line Items] |  |  |  |
Amortization of intangibles | $ 60 | $ 51 | $ 117 | $ 107
Restructuring costs | 10 | 9 | 20 | 24
Other | (13) | 28 | (30) | 35
Total | 57 | 88 | 107 | 166
Increase (decrease) in intangibles amortization from acquisitions | 13 |  | 29 |
Higher (lower) acquisition and divestiture related costs | (33) |  | (35) |
Change in gain (loss) from foreign currency exchange transactions |  |  | 10 |
Change in pension expense (income) | $ (11) |  | $ (22) |
Pentair's Valves & Controls [Member] | Order or Production Backlog [Member] |  |  |  |
Other deductions, net [Line Items] |  |  |  |
Backlog amortization |  | $ 4 |  | $ 19

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- Definition Amortization of intangibles intellectual property and customer relationships + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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