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CAPITAL STOCK - Additional Information, Other Equity Arrangements (Detail) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2018 | Dec. 28, 2019 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 30, 2017 | Jul. 01, 2017 | Sep. 28, 2018 | Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017 | Nov. 13, 2019 | Nov. 07, 2019 | Sep. 30, 2017 | May 17, 2017 | May 11, 2017
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Forward Interest Rate |  | 5.375% |  |  |  |  |  |  | 5.375% |  |  |  |  |  |  |
Option Indexed to Issuer's Equity, Strike Price |  | $ 191.34 |  |  |  | $ 161.41 | $ 162.27 |  | $ 161.41 |  |  |  |  |  |  |
Shares Purchased, Transaction Costs |  |  |  |  |  |  |  |  |  | $ 25.1 |  |  |  |  |  |
Purchase of common stock for treasury |  |  | $ 300.0 | $ 200.0 |  |  |  |  | $ 27.5 | $ 527.1 | $ 28.7 |  |  |  |  |
Option indexed to issuer's equity, number of call options purchased |  |  |  |  | 3,200,000 |  |  |  | 3,900,000 | 4,600,000 |  |  |  |  |  |
Purchase Of Call Options |  | $ (19.2) |  |  | $ (57.3) |  | $ (25.1) |  | $ 19.2 | $ 57.3 | 25.1 |  |  |  |  |
Number of net-share settled options exercised (in shares) |  |  |  |  |  |  |  |  | 1,851,761 |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share |  | $ 1,000 |  |  |  |  | $ 1,000 |  | $ 1,000 |  |  |  |  | $ 1,000 |  |
Preferred Stock Conversion Rate Number Of Common Stock Shares |  | $ 5.2263 |  |  |  |  | $ 6.1627 |  | $ 6.1954 |  |  |  |  |  |  |
equity unit proceeds |  | $ 735.0 |  |  |  |  | $ 726.0 |  | $ 735.0 |  |  |  |  |  |  |
Preferred Stock, Value, Issued |  | $ 1,500.0 |  |  |  |  |  |  | $ 1,500.0 | $ 750.0 |  |  |  |  |  |
Common Stock, Shares, Issued |  | 176,902,738 |  |  |  |  |  |  | 176,902,738 | 176,902,738 |  |  |  |  |  |
Treasury Stock, Shares, Acquired |  |  | 2,086,792 | 1,399,732 |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  | $ 2.5 |  |  |  |  |  |  | $ 2.5 | $ 2.5 |  |  |  |  |  |
Equity Units Conversion Rate Number Of Common Stock Shares |  | 0.6272 |  |  |  | 0.7279 | 0.7241 |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued |  |  |  |  |  |  |  |  | $ 146.0 | $ 38.5 | $ 90.8 |  |  |  |  |
equity units issued |  | 7,500,000 |  |  |  |  | 7,500,000 |  | 7,500,000 |  |  |  |  |  |  |
Equity Unit |  | $ 750.0 |  |  |  |  | $ 750.0 |  | $ 750.0 |  |  |  |  |  |  |
Shares Issued, Price Per Share |  | $ 137.38 |  |  |  |  | $ 100 |  | $ 137.38 |  |  | $ 100 | $ 159.45 |  |  | $ 138.10
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share |  | $ 100 |  |  |  | $ 100 | $ 100 |  | $ 100 |  |  |  |  |  |  |
Forward Contract Indexed to Issuer's Equity, Shares |  | 4,700,000 |  |  |  |  |  |  | 5,400,000 |  |  |  |  |  |  |
Preferred Stock, Shares Issued |  | 750,000 |  |  |  |  | 750,000 |  | 750,000 |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  | $ 750.0 |  |  |  |  | $ 750.0 |  | $ 750.0 |  |  |  |  |  |  |
Accretion Expense |  |  |  |  |  |  |  |  | 1.3 |  |  |  |  |  |  |
Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value |  | 19.7 |  |  |  |  |  |  | 19.7 |  |  | $ 114.2 |  |  | $ 117.1 |
Option Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value |  | $ 36.0 | $ 56.4 |  |  |  |  |  | $ 36.0 |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity, Strike Price | $ 203.92 | $ 207.29 |  |  |  |  | $ 179.53 | $ 203.57 | $ 178.58 |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity, Strike Price | $ 156.86 | $ 191.34 |  |  |  |  | $ 162.27 | $ 156.59 | 161.41 |  |  |  |  |  |  |
Call Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call option, average price |  |  |  |  | $ 17.96 |  |  |  | 4.90 | $ 5.43 |  |  |  |  |  |
2022 Purchase Contract [Member] [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |
Cash Settlement on Forward Stock Purchase Contract |  | $ 750.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 Purchase Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Settlement on Forward Stock Purchase Contract |  |  |  |  |  |  |  |  | $ 750.0 |  |  |  |  |  |  |
2019 Equity Units [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Forward Interest Rate |  | 5.25% |  |  |  |  |  |  | 5.25% |  |  |  |  |  |  |
Accretion Expense |  |  |  |  |  |  |  |  | $ 1.3 |  |  |  |  |  |  |
Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value |  | $ 114.4 |  |  |  |  |  |  | $ 114.4 |  |  |  |  |  |  |
2019 Equity Units [Domain] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity, Strike Price |  |  |  |  |  |  |  |  | $ 207.29 |  |  |  |  |  |  |
2019 Capped Call [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Indexed to Issuer's Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase Of Call Options |  |  |  |  |  |  |  |  | $ 19.2 |  |  |  |  |  |  |

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