Supplemental Cash Flow Information (Tables)

12 Months Ended

Sep. 30, 2017

Supplemental Cash Flow Information [Abstract]

Schedule Of Cash Payments For Interest And Income Taxes

The following table summarizes cash payments for interest and income taxes:

					in millions
	2017		2016		2015
Interest, net of amounts capitalized	$	249	$	242	$	308
Income taxes, net of refunds	779		686		437