Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 28, 2015	Dec. 31, 2015
Stockholders Equity Note Disclosure [Line Items]
Common Stock, Shares Authorized	426.0		426.0
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Dividends Payable, Amount Per Share	0.33		$ 0.33
Treasury Stock, Shares, Retired			19.1
Treasury Stock, Retired, Cost Method, Amount			$ 1,200.0
Common Stock, Dividends, Per Share, Cash Paid	$ 0.33	$ 0.32
Share repurchase (in shares)	0.0	3.1
Repurchase of common stock, value		$ 200.0
ApprovedNotDeclaredlDividends			$ 1.34
Dividends payable	$ 59.6		$ 59.6
December 2014 Share Repurchase Program [Member]
Stockholders Equity Note Disclosure [Line Items]
Repurchase of shares of our common stock up to a maximum aggregate value	$ 1,000.0
Common stock authorized for repurchase, expiration date	Dec. 31, 2019
Share repurchase program remaining available amount	$ 800.0
Treasury shares
Stockholders Equity Note Disclosure [Line Items]
Share repurchase (in shares)		0.0
Repurchase of common stock, value		$ 0.0
First Quarter [Member]
Stockholders Equity Note Disclosure [Line Items]
ApprovedNotDeclaredlDividends			$ 0.33
Second Quarter [Member] [Member]
Stockholders Equity Note Disclosure [Line Items]
ApprovedNotDeclaredlDividends			0.33
Third Quarter [Member]
Stockholders Equity Note Disclosure [Line Items]
ApprovedNotDeclaredlDividends			0.34
Fourth Quarter [Member]
Stockholders Equity Note Disclosure [Line Items]
ApprovedNotDeclaredlDividends			$ 0.34