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Guarantees (Tables)
12 Months Ended
Sep. 30, 2018
Product Warranties Disclosures [Abstract]  
Changes in Carrying Amount of Product Warranty Liability
The changes in the carrying amount of the Company’s total product warranty liability, including extended warranties for which deferred revenue is recorded, for the fiscal years ended September 30, 2018 and 2017 were as follows (in millions):
 
Year Ended
September 30,
 
2018
 
2017
Balance at beginning of period
$
409

 
$
374

Accruals for warranties issued during the period
309

 
312

Accruals from acquisitions and divestitures (1)

 
7

Accruals related to pre-existing warranties (including changes in estimates)
(26
)
 
(4
)
Settlements made (in cash or in kind) during the period
(297
)
 
(280
)
Currency translation
(3
)
 

Balance at end of period
$
392

 
$
409



(1) The year ended September 30, 2017 includes $13 million of product warranties transferred to liabilities held for sale on the consolidated statements of financial position. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's disposal groups classified as held for sale.