Net Earnings Per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2017	Apr. 01, 2016
Earnings Per Share [Abstract]
Basic EPS	$ 199.7
Incremental shares from assumed exercise of dilutive options and vesting of dilutive Stock Awards	0.0
Diluted EPS	$ 199.7
Basic EPS (in shares)	347.0	345.2
Incremental shares from assumed exercise of dilutive options and vesting of dilutive RSUs and PSUs (in shares)	4.5
Diluted EPS (in shares)	351.5	345.2
Basic EPS (in dollars per share)	$ 0.58	$ 0.53
Diluted EPS (in dollars per share)	$ 0.57	$ 0.53
Basic and diluted EPS		$ 182.0
Basic and diluted EPS (in shares)		345.2
Basic and Diluted EPS (in dollars per share)		$ 0.53

Net Income (Loss) Available to Common Stockholders, Basic and Diluted

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Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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