CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) $ in Millions	Mar. 25, 2016 SFr / shares	Mar. 25, 2016 USD ($) shares	Sep. 25, 2015 SFr / shares	Sep. 25, 2015 USD ($) shares
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts (in dollars) | $		$ 17		$ 18
Common shares, shares authorized		414,064,381		414,064,381
Common shares, shares issued		414,064,381		414,064,381
Common shares, par value (in currency per share) | SFr / shares	SFr 0.57		SFr 0.57
Treasury shares		56,563,475		20,071,089