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Schedule of Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2018 | [1],[2] | Sep. 29, 2018 | [1] | Jun. 30, 2018 | [1] | Mar. 31, 2018 | [1] | Dec. 30, 2017 | [1],[3] | Sep. 30, 2017 | [1] | Jul. 01, 2017 | [1] | Apr. 01, 2017 | [1] | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 2,670 |  | $ 2,887 |  | $ 2,628 |  | $ 2,830 |  | $ 2,581 |  | $ 2,620 |  | $ 2,363 |  | $ 2,676 |  | $ 11,015 | $ 10,240 | $ 11,021
Gross profit | 602 |  | 686 |  | 596 |  | 667 |  | 607 |  | 633 |  | 545 |  | 675 |  | 2,551 | 2,461 | 2,708
Operating income | 24 | [4] | 105 | [4] | 48 | [4] | 77 | [4] | 56 | [5],[6] | 105 | [5],[6] | 41 | [5],[6] | 124 | [5],[6] | 254 | 327 | 518
Net income (loss) from continuing operations | (14) | [7] | 60 | [7] | 19 | [7] | 33 | [7] | (48) | [8] | 98 | [8] | 21 | [8] | 74 | [8] | 99 | 146 | 679
Discontinued operations, net of tax |  |  |  |  | (3) |  | 8 |  | (4) |  | (6) |  | 3 |  | 42 |  | 5 | 35 | (150)
Net income (loss) | $ (14) |  | $ 60 |  | $ 16 |  | $ 41 |  | $ (52) |  | $ 92 |  | $ 24 |  | $ 116 |  | $ 104 | $ 181 | $ 529
Basic earnings (loss) per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations | $ (0.02) |  | $ 0.11 |  | $ 0.03 |  | $ 0.06 |  | $ (0.09) |  | $ 0.19 |  | $ 0.04 |  | $ 0.14 |  | $ 0.18 | $ 0.28 | $ 1.26
Discontinued operations |  |  |  |  |  |  | 0.01 |  | (0.01) |  | (0.01) |  | 0.01 |  | 0.08 |  | 0.01 | 0.07 | (0.28)
Net basic earnings per share | (0.02) |  | 0.11 |  | 0.03 |  | 0.07 |  | (0.10) |  | 0.18 |  | 0.05 |  | 0.22 |  | 0.19 | 0.35 | 0.98
Diluted earnings (loss) per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations | (0.02) |  | 0.11 |  | 0.03 |  | 0.06 |  | (0.09) |  | 0.19 |  | 0.04 |  | 0.14 |  | 0.18 | 0.27 | 1.24
Discontinued operations |  |  |  |  |  |  | 0.01 |  | (0.01) |  | (0.01) |  | 0.01 |  | 0.08 |  | 0.01 | 0.06 | (0.27)
Net diluted earnings per share | $ (0.02) |  | $ 0.11 |  | $ 0.03 |  | $ 0.07 |  | $ (0.10) |  | $ 0.17 |  | $ 0.05 |  | $ 0.22 |  | $ 0.19 | $ 0.34 | $ 0.96
[1] | Due to rounding, the sum of the quarterly amounts may not equal the reported amounts for the year.
[2] | The sum of the quarterly earnings per share does not equal the annual earnings per share due to differences in quarterly and annual weighted-average shares outstanding.
[3] | Includes $205 million of incremental sales from acquisitions in the fourth quarter of 2017.
[4] | Includes Merger and restructuring expenses, net totaling $17 million, $14 million, $14 million and $27 million in the first, second, third and fourth quarters of 2018, respectively. The fourth quarter of 2018 also includes asset impairments of $7 million and a legal expense of $25 million. Refer to Note 17 for additional information on the legal expense.
[5] | Includes Merger and restructuring expenses, net totaling $20 million, $20 million, $22 million and $32 million in the first, second, third and fourth quarters of 2017, respectively. The second and fourth quarters of 2017 also include asset impairments of $1 million and $3 million, respectively.
[6] | Reflects the reclassification of $3 million, $5 million, $3 million and $3 million in the first, second, third and fourth quarters of 2017, respectively, from Selling, general and administrative expenses to Other income, net associated with the retrospective adoption of a 2018 accounting standard affecting the presentation of defined benefit plan expenses. Refer to Note 1 for additional information.
[7] | Includes a loss on debt modification of $15 million and a tax benefit of $4 million due to a book-to-tax basis difference related to the sale of Clearpath Holdings, LLC in the fourth quarter of 2018.
[8] | The third quarter of 2017 includes a non-cash tax benefit of approximately $37 million from the release of valuation allowances on deferred tax assets. The fourth quarter includes $18 million of net loss from businesses acquired in 2017.

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