CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) $ in Millions	Mar. 25, 2016 USD ($) $ / shares shares	Mar. 25, 2016 € / shares	Sep. 25, 2015 USD ($) $ / shares shares
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts | $	$ 76		$ 70
Ordinary shares, par value | $ / shares	$ 0.01		$ 0.01
Ordinary shares, shares authorized	1,000,000,000		1,000,000,000
Ordinary shares, shares issued	425,294,236		422,400,870
Ordinary shares held in treasury, shares	409,244		79,770
Preferred Stock, Par or Stated Value Per Share (usd per share) | $ / shares	$ 0.01		$ 0.01
Preferred Stock, Shares Authorized	100,000,000		100,000,000
Preferred Stock, Shares Issued	0		0
Ordinary A, Par or Stated Value per Share | (per share)		€ 1.00	$ 1.00
Ordinary A Shares, shares authorized	40,000		40,000
Ordinary A Shares, shares outstanding	0		0