Share Based Compensation (Summary Of Activity Of The RSUs Granted) (Details) $ / shares in Units, shares in Millions, $ in Millions	9 Months Ended
	Jun. 28, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.7
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.70
Fair Value at Grant Date | $	$ 46.1
RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.7
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.70
Fair Value at Grant Date | $	$ 46.1
Time-based grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.4
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.54
Fair Value at Grant Date | $	$ 26.8
Time-based grants | Vesting in less than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.37
Fair Value at Grant Date | $	$ 18.6
Time-based grants | Vesting in more than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.1
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 8.2
Performance-based grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 19.3
Performance-based grants | Vesting in more than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 19.3
SB/RH
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.7
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.68
Fair Value at Grant Date | $	$ 44.8
SB/RH | RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.7
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.68
Fair Value at Grant Date | $	$ 44.8
SB/RH | Time-based grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.4
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.49
Fair Value at Grant Date | $	$ 25.5
SB/RH | Time-based grants | Vesting in less than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.29
Fair Value at Grant Date | $	$ 17.3
SB/RH | Time-based grants | Vesting in more than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.1
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 8.2
SB/RH | Performance-based grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 19.3
SB/RH | Performance-based grants | Vesting in more than 24 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units (in shares) | shares	0.3
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 62.93
Fair Value at Grant Date | $	$ 19.3