Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Balance at Jan. 31, 2015	$ 4,264,230	$ 684,733		$ (554,385)	$ 4,133,882
Balance (in shares) at Jan. 31, 2015	684,733,200	684,733,000
Net income	474,601				474,601
Other comprehensive income (loss), net of tax	46,991			46,991
Cash dividends declared on common stock	(142,943)				(142,943)
Recognition of share-based compensation	21,150		21,150
Issuance of common stock under Stock Incentive Plan and related tax effect (in shares)		1,828,000
Issuance of common stock under Stock Incentive Plan and related tax effect	46,166	1,828	44,338
Common stock repurchased (in shares)		(6,176,000)
Common stock repurchased	(419,905)	(6,176)	(65,488)		(348,241)
Balance at May. 02, 2015	$ 4,290,290	$ 680,385		$ (507,394)	$ 4,117,299
Balance (in shares) at May. 02, 2015	680,385,015	680,385,000