Condensed Consolidated Statement of Changes in Stockholders' Deficit - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interest
NONCONTROLLING INTERESTS							$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders' deficit	$ (1,808)
BALANCE (in shares) at Sep. 30, 2018		56,895,686
BALANCE (in shares) at Sep. 30, 2018						(4,161,326)
BALANCE at Sep. 30, 2018		$ 1	$ 1,209	$ (2,247)	$ 4	$ (775)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend Equivalent Payments On Certain Stock Options	(3)			(3)
Cumulative Effect on Retained Earnings, Net of Tax | ASC 606 and ASU 2016-06	3			3
Compensation expense recognized for employee stock options	16		16
Exercise of employee stock options		109,695
Exercise of employee stock options	14	$ 0	14
Net income attributable to TD Group	(196)			196
Foreign currency translation adjustments, net of tax	(11)				(11)
Unrealized (loss) gain on derivatives, net of tax	(74)				(74)
Pensions and other postretirement benefit adjustments, net of tax	0
BALANCE (in shares) at Dec. 29, 2018		57,005,381
BALANCE (in shares) at Dec. 29, 2018						(4,161,326)
BALANCE at Dec. 29, 2018		$ 1	1,239	(2,051)	(81)	$ (775)
NONCONTROLLING INTERESTS							0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders' deficit	(1,667)
NONCONTROLLING INTERESTS	10						10
Total stockholders' deficit	$ (2,884)
BALANCE (in shares) at Sep. 30, 2019	57,623,311	57,623,311
BALANCE (in shares) at Sep. 30, 2019	(4,161,326)					(4,161,326)
BALANCE at Sep. 30, 2019	$ (2,894)	$ 1	1,379	(3,120)	(379)	$ (775)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity of noncontrolling interested divested	(6)						(6)
Dividend Equivalent Payments On Certain Stock Options	(19)			(19)
Dividend Equivalent Declared On Certain Stock Options	(1,864)			(1,864)
Compensation expense recognized for employee stock options	23		23
Exercise of employee stock options		169,470
Exercise of employee stock options	20		20
Net income attributable to TD Group	(304)			304
Foreign currency translation adjustments, net of tax	98				98
Unrealized (loss) gain on derivatives, net of tax	23				23
Pensions and other postretirement benefit adjustments, net of tax	$ 6				6
BALANCE (in shares) at Dec. 28, 2019	57,792,781	57,792,781
BALANCE (in shares) at Dec. 28, 2019	(4,161,326)					(4,161,326)
BALANCE at Dec. 28, 2019	$ (4,303)	$ 1	$ 1,422	$ (4,699)	$ (252)	$ (775)
NONCONTROLLING INTERESTS	4						$ 4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders' deficit	$ (4,299)