Guarantees (Tables)

12 Months Ended

Sep. 30, 2016

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, 2016 and 2015 were as follows (in millions):

	Year Ended September 30,
	2016			2015
Balance at beginning of period	$	300		$	319
Accruals for warranties issued during the period	324			280
Accruals from acquisitions and divestitures	83			—
Accruals related to pre-existing warranties (including changes in estimates)	(13		)	(11		)
Settlements made (in cash or in kind) during the period	(301		)	(282		)
Currency translation	3			(6		)
Balance at end of period	$	396		$	300