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Debt (Schedule of Short-Term and Long-Term Debt) (Details) - USD ($)	Jul. 31, 2021	Jan. 30, 2021	Oct. 31, 2020	Aug. 01, 2020	Apr. 30, 2020
Debt Instrument [Line Items]
Total short-term debt	$ 0	$ 0		$ 802,507,000
Total long-term debt	2,515,209,000	2,513,085,000		2,286,295,000
Current portion of long-term debt	64,964,000	64,910,000		0
Total due beyond one year	2,450,245,000	2,448,175,000		2,286,295,000
6.530% Series B Senior Notes due 2021 \| 6.530% Series B Senior Notes due 2021
Debt Instrument [Line Items]
Total long-term debt	$ 64,964,000	64,910,000		64,868,000
Stated interest rate (percent)	6.53%
Senior Notes \| 3.375% Senior Notes due 2024
Debt Instrument [Line Items]
Total long-term debt	$ 248,586,000	248,365,000		248,146,000
Stated interest rate (percent)	3.375%
Senior Notes \| 4.600% Senior Notes due 2025
Debt Instrument [Line Items]
Total long-term debt	$ 695,255,000	694,624,000		693,991,000
Stated interest rate (percent)	4.60%				4.60%
Senior Notes \| 0.875% Senior Notes due 2026
Debt Instrument [Line Items]
Total long-term debt	$ 494,203,000	493,595,000		0
Stated interest rate (percent)	0.875%		0.875%
Senior Notes \| 4.700% Senior Notes due 2027
Debt Instrument [Line Items]
Total long-term debt	$ 239,259,000	239,049,000		395,124,000
Stated interest rate (percent)	4.70%				4.70%
Senior Notes \| 4.800% Senior Notes due 2030
Debt Instrument [Line Items]
Total long-term debt	$ 132,346,000	132,262,000		394,759,000
Stated interest rate (percent)	4.80%				4.80%
Senior Notes \| 1.875% Senior Notes due 2031
Debt Instrument [Line Items]
Total long-term debt	$ 494,411,000	494,132,000		0
Stated interest rate (percent)	1.875%		1.875%
Senior Notes \| 5.450% Senior Notes due 2050
Debt Instrument [Line Items]
Total long-term debt	$ 146,185,000	146,148,000		489,407,000
Stated interest rate (percent)	5.45%				5.45%
$800 million revolving credit facility
Debt Instrument [Line Items]
Total short-term debt	$ 0	0		800,000,000
Maximum borrowing capacity	800,000,000
Other short-term debt financing
Debt Instrument [Line Items]
Total short-term debt	$ 0	$ 0		$ 2,507,000