10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 29, 2018

Commission File Number 0-00981

PUBLIX SUPER MARKETS, INC.

(Exact name of Registrant as specified in its charter)

Florida	59-0324412
(State of incorporation)	(I.R.S. Employer Identification No.)
3300 Publix Corporate Parkway Lakeland, Florida	33811
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code: (863) 688-1188

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days.

Yes    X          No  

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months.

Yes    X          No  

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer     Accelerated filer    Non-accelerated filer    X  

Smaller reporting company     Emerging growth company  

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes          No    X  

The number of shares of the Registrant’s common stock outstanding as of October 15, 2018 was 718,491,000.

PART I. FINANCIAL INFORMATION

Item 1.    Financial Statements

PUBLIX SUPER MARKETS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts are in thousands, except par value)

	September 29, 2018				December 30, 2017
		(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents		$	616,283			579,925
Short-term investments		575,195				915,579
Trade receivables		649,945				671,414
Inventories		1,752,610				1,876,519
Prepaid expenses		49,781				41,484
Total current assets		3,643,814				4,084,921
Long-term investments		6,278,318				5,517,732
Other noncurrent assets		502,556				583,149
Property, plant and equipment		14,089,076				13,085,492
Accumulated depreciation		(5,515,016		)		(5,087,788	)
Net property, plant and equipment		8,574,060				7,997,704
		$	18,998,748			18,183,506
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable		$	1,754,822			1,754,706
Accrued expenses:
Contributions to retirement plans		441,513				517,493
Self-insurance reserves		141,882				137,100
Salaries and wages		272,712				124,423
Other		494,300				329,420
Current portion of long-term debt		4,895				37,873
Federal and state income taxes		23,524				241,299
Total current liabilities		3,133,648				3,142,314
Deferred income taxes		399,678				360,952
Self-insurance reserves		224,529				218,598
Accrued postretirement benefit cost		113,661				113,461
Long-term debt		163,928				155,201
Other noncurrent liabilities		71,412				84,361
Total liabilities		4,106,856				4,074,887
Common stock related to Employee Stock Ownership Plan (ESOP)		3,188,497				3,053,138
Stockholders’ equity:
Common stock of $1 par value. Authorized 1,000,000 shares; issued 740,595 shares in 2018 and 733,440 shares in 2017		740,595				733,440
Additional paid-in capital		3,439,412				3,139,647
Retained earnings		11,669,368				10,044,564
Treasury stock at cost, 22,012 shares in 2018		(921,510		)		—
Accumulated other comprehensive (losses) earnings		(72,372		)		152,636
Common stock related to ESOP		(3,188,497		)		(3,053,138	)
Total stockholders’ equity		11,666,996				11,017,149
Noncontrolling interests		36,399				38,332
Total equity		14,891,892				14,108,619
		$	18,998,748			18,183,506

See accompanying notes to condensed consolidated financial statements.     

1

PUBLIX SUPER MARKETS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

(Amounts are in thousands, except per share amounts)

		Three Months Ended
	September 29, 2018			September 30, 2017
		(Unaudited)
Revenues:
Sales		$	8,788,762		8,520,569
Other operating income		69,339			65,511
Total revenues		8,858,101			8,586,080
Costs and expenses:
Cost of merchandise sold		6,436,041			6,219,735
Operating and administrative expenses		1,838,908			1,731,551
Total costs and expenses		8,274,949			7,951,286
Operating profit		583,152			634,794
Investment income		230,234			38,430
Other nonoperating income, net		19,051			17,218
Earnings before income tax expense		832,437			690,442
Income tax expense		154,693			215,515
Net earnings		$	677,744		474,927
Weighted average shares outstanding		723,236			748,347
Basic and diluted earnings per share		$	0.94		0.63
Dividends paid per share		$	0.26		0.23

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

(Amounts are in thousands)

		Three Months Ended
	September 29, 2018				September 30, 2017
		(Unaudited)
Net earnings		$	677,744			474,927
Other comprehensive earnings:
Unrealized (loss) on debt securities net of income taxes of $(708) in 2018. Unrealized gain on debt and equity securities net of income taxes of $30,884 in 2017.		(2,076		)		49,043
Reclassification adjustment for net realized gain on debt securities net of income taxes of $(62) in 2018. Reclassification adjustment for net realized gain on debt and equity securities net of income taxes of $(3,989) in 2017.		(181		)		(6,334	)
Adjustment to postretirement benefit obligation net of income taxes of $192 in 2018.		564				—
Comprehensive earnings		$	676,051			517,636

See accompanying notes to condensed consolidated financial statements.     

2

PUBLIX SUPER MARKETS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

(Amounts are in thousands, except per share amounts)

		Nine Months Ended
	September 29, 2018			September 30, 2017
		(Unaudited)
Revenues:
Sales		$	26,814,561		25,620,710
Other operating income		215,350			201,143
Total revenues		27,029,911			25,821,853
Costs and expenses:
Cost of merchandise sold		19,483,545			18,592,991
Operating and administrative expenses		5,486,465			5,240,753
Total costs and expenses		24,970,010			23,833,744
Operating profit		2,059,901			1,988,109
Investment income		342,687			192,906
Other nonoperating income, net		64,709			49,745
Earnings before income tax expense		2,467,297			2,230,760
Income tax expense		493,110			705,490
Net earnings		$	1,974,187		1,525,270
Weighted average shares outstanding		729,434			759,284
Basic and diluted earnings per share		$	2.71		2.01
Dividends paid per share		$	0.75		0.6825

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

(Amounts are in thousands)

		Nine Months Ended
	September 29, 2018				September 30, 2017
		(Unaudited)
Net earnings		$	1,974,187			1,525,270
Other comprehensive earnings:
Unrealized (loss) on debt securities net of income taxes of $(9,770) in 2018. Unrealized gain on debt and equity securities net of income taxes of $70,268 in 2017.		(28,657		)		111,585
Reclassification adjustment for net realized loss on debt securities net of income taxes of $91 in 2018. Reclassification adjustment for net realized (gain) on debt and equity securities net of income taxes of $(40,526) in 2017.		266				(64,355	)
Adjustment to postretirement benefit obligation net of income taxes of $577 in 2018.		1,693				—
Comprehensive earnings		$	1,947,489			1,572,500

See accompanying notes to condensed consolidated financial statements.         

3

PUBLIX SUPER MARKETS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts are in thousands)

		Nine Months Ended
	September 29, 2018				September 30, 2017
		(Unaudited)
Cash flows from operating activities:
Cash received from customers		$	26,976,556			25,786,802
Cash paid to employees and suppliers		(23,613,609		)		(22,593,366	)
Income taxes paid		(548,092		)		(478,456	)
Self-insured claims paid		(292,064		)		(270,036	)
Dividends and interest received		140,673				185,542
Other operating cash receipts		211,856				197,277
Other operating cash payments		(12,329		)		(14,748	)
Net cash provided by operating activities		2,862,991				2,813,015
Cash flows from investing activities:
Payment for capital expenditures		(1,098,845		)		(1,063,152	)
Proceeds from sale of property, plant and equipment		9,408				4,460
Payment for investments		(1,941,469		)		(2,353,947	)
Proceeds from sale and maturity of investments		1,752,100				2,593,592
Net cash used in investing activities		(1,278,806		)		(819,047	)
Cash flows from financing activities:
Payment for acquisition of common stock		(1,192,046		)		(1,438,628	)
Proceeds from sale of common stock		228,032				215,424
Dividends paid		(547,693		)		(519,787	)
Repayment of long-term debt		(42,253		)		(46,019	)
Other, net		6,133				27,418
Net cash used in financing activities		(1,547,827		)		(1,761,592	)
Net increase in cash and cash equivalents		36,358				232,376
Cash and cash equivalents at beginning of period		579,925				438,319
Cash and cash equivalents at end of period		$	616,283			670,695

See accompanying notes to condensed consolidated financial statements.     (Continued)

4

PUBLIX SUPER MARKETS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts are in thousands)

		Nine Months Ended
	September 29, 2018				September 30, 2017
		(Unaudited)
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings		$	1,974,187			1,525,270
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization		501,098				484,307
Increase in last-in, first out (LIFO) reserve		22,926				20,720
Retirement contributions paid or payable in common stock		273,950				280,571
Deferred income taxes		47,828				36,311
Loss on disposal and impairment of property, plant and equipment		10,612				1,991
Gain on investments		(249,808		)		(104,881	)
Net amortization of investments		50,357				87,982
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables		21,566				67,952
Inventories		100,983				(4,632	)
Prepaid expenses and other noncurrent assets		64,758				(5,410	)
Accounts payable and accrued expenses		262,581				264,196
Self-insurance reserves		10,713				1,692
Federal and state income taxes		(217,775		)		162,748
Other noncurrent liabilities		(10,985		)		(5,802	)
Total adjustments		888,804				1,287,745
Net cash provided by operating activities		$	2,862,991			2,813,015

See accompanying notes to condensed consolidated financial statements.         

5

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Publix Super Markets, Inc. and subsidiaries (Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial reporting. Accordingly, the accompanying statements do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, these statements include all adjustments that are of a normal and recurring nature necessary to present fairly the Company’s financial position and results of operations. Due to the seasonal nature of the Company’s business, the results of operations for the three and nine months ended September 29, 2018 are not necessarily indicative of the results for the entire 2018 fiscal year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 30, 2017.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

(2) Recently Issued Accounting Standards

In June 2016, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) requiring companies to change the methodology used to measure credit losses on financial instruments. The ASU is effective for reporting periods beginning after December 15, 2019 with early adoption permitted only for reporting periods beginning after December 15, 2018.  The Company does not expect the adoption of the ASU to have a material effect on the Company’s financial condition or results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In February 2016, the FASB issued an ASU requiring the lease rights and obligations arising from lease contracts, including existing and new arrangements, be recognized as assets and liabilities on the balance sheet. The ASU is effective for reporting periods beginning after December 15, 2018 with early adoption permitted. While the Company is still evaluating the ASU, the Company expects the adoption of the ASU to have a material effect on the Company’s financial condition due to the recognition of approximately $3 billion of lease rights and obligations as assets and liabilities on the consolidated balance sheets. The Company does not expect the adoption of the ASU to have a material effect on the Company’s results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In January 2016, the FASB issued an ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company prospectively adopted the ASU and reclassified the cumulative effect of the net unrealized gain on equity securities net of income taxes as of December 31, 2017 of $198,310,000 from accumulated other comprehensive earnings to retained earnings. The effect of the ASU on results of operations will vary with changes in the fair value of equity securities.

In May 2014, the FASB issued an ASU requiring additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company adopted the ASU on a modified retrospective basis. The adoption of the ASU did not have a material effect on the Company’s financial condition, results of operations or cash flows.

6

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(3) Fair Value of Financial Instruments

The fair value of certain of the Company’s financial instruments, including cash and cash equivalents, trade receivables and accounts payable, approximates their respective carrying amounts due to their short-term maturity.

The fair value of investments is based on market prices using the following measurement categories:

Level 1 – Fair value is determined by using quoted prices in active markets for identical investments. Investments included in this category are equity securities (exchange traded funds and individual equity securities) and a restricted investment held as collateral (money market/mutual fund), collectively referred to as equity securities.

Level 2 – Fair value is determined by using other than quoted prices. By using observable inputs (for example, benchmark yields, interest rates, reported trades and broker dealer quotes), the fair value is determined through processes such as benchmark curves, benchmarking of like securities and matrix pricing of corporate, state and municipal bonds by using pricing of similar bonds based on coupons, ratings and maturities. Investments included in this category are primarily debt securities (tax exempt and taxable bonds).

Level 3 – Fair value is determined by using other than observable inputs. Fair value is determined by using the best information available in the circumstances and requires significant management judgment or estimation. No investments are currently included in this category.

Following is a summary of fair value measurements for investments as of September 29, 2018 and December 30, 2017:

	Fair Value		Level 1	Level 2	Level 3
	(Amounts are in thousands)
September 29, 2018	$	6,853,513	2,983,110	3,870,403	—
December 30, 2017	6,433,311		2,545,320	3,887,991	—

7

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(4) Investments

(a) Debt Securities

Debt securities are classified as available-for-sale and carried at fair value. The Company evaluates whether debt securities are other-than-temporarily impaired (OTTI) based on criteria that include the extent to which the cost (cost of the debt security adjusted for amortization of premium or accretion of discount) exceeds market value, the duration of the market value decline, the credit rating of the issuer or security, the failure of the issuer to make scheduled principal or interest payments and the financial health and prospects of the issuer or security.

Declines in the fair value of debt securities determined to be OTTI are recognized in earnings and reported as OTTI losses. Debt securities with unrealized losses are considered OTTI if the Company intends to sell the debt security or if the Company will be required to sell the debt security prior to any anticipated recovery. If the Company determines that a debt security is OTTI under these circumstances, the impairment recognized in earnings is measured as the difference between the cost and the fair value. A debt security is also determined to be OTTI if the Company does not expect to recover the cost of the debt security. However, in this circumstance, if the Company does not intend to sell the debt security and will not be required to sell the debt security, the impairment recognized in earnings equals the estimated credit loss as measured by the difference between the present value of expected cash flows and the cost of the debt security. Expected cash flows are discounted using the debt security’s effective interest rate. Changes in the fair value of debt securities determined to be temporary are reported in other comprehensive earnings net of income taxes and included as a component of stockholders’ equity.

Following is a summary of debt securities as of September 29, 2018 and December 30, 2017:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	1,340,795		110		20,347	1,320,558
Taxable bonds	2,406,444			340		58,739	2,348,045
	$	3,747,239		450		79,086	3,668,603
December 30, 2017
Tax exempt bonds	$	1,811,523		602		16,420	1,795,705
Taxable bonds	2,115,174			695		25,443	2,090,426
	$	3,926,697		1,297		41,863	3,886,131

8

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The cost and fair value of debt securities by expected maturity as of September 29, 2018 and December 30, 2017 are as follows:

	September 29, 2018			December 30, 2017
	Cost		Fair Value	Cost	Fair Value
	(Amounts are in thousands)
Due in one year or less	$	577,480	575,195	917,576	915,579
Due after one year through five years	2,713,698		2,640,263	2,794,099	2,757,504
Due after five years through ten years	448,838		445,862	205,792	203,533
Due after ten years	7,223		7,283	9,230	9,515
	$	3,747,239	3,668,603	3,926,697	3,886,131

Following is a summary of temporarily impaired debt securities by the time period impaired as of September 29, 2018 and December 30, 2017:

	Less Than 12 Months				12 Months or Longer			Total
	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	775,195		8,384	537,591		11,963	1,312,786		20,347
Taxable bonds	1,214,748			20,329	1,017,301		38,410	2,232,049		58,739
	$	1,989,943		28,713	1,554,892		50,373	3,544,835		79,086
December 30, 2017
Tax exempt bonds	$	1,543,151		13,827	136,217		2,593	1,679,368		16,420
Taxable bonds	811,886			4,908	1,153,645		20,535	1,965,531		25,443
	$	2,355,037		18,735	1,289,862		23,128	3,644,899		41,863

There are 436 debt securities contributing to the total unrealized losses of $79,086,000 as of September 29, 2018. Unrealized losses related to debt securities are primarily due to increases in interest rates impacting the market value of certain bonds. The Company continues to receive scheduled principal and interest payments on these debt securities.

9

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(b) Equity Securities

In 2018, the Company adopted the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings (fair value adjustment). The fair value adjustment also includes the cumulative effect of the ASU as of December 31, 2017 reclassified from accumulated other comprehensive earnings to retained earnings.

Prior to adoption of the ASU, changes in the fair value of equity securities were accounted for similar to changes in the fair value of debt securities. Equity securities were classified as available-for-sale and carried at fair value. Declines in the fair value of equity securities determined to be OTTI were recognized in earnings and reported as OTTI losses. An equity security was determined to be OTTI if the Company did not expect to recover the cost of the equity security. Changes in the fair value of equity securities determined to be temporary were reported in other comprehensive earnings net of income taxes and included as a component of stockholders’ equity.

Following is a summary of the fair value of equity securities as of September 29, 2018 and December 30, 2017:

	September 29, 2018			December 30, 2017
	(Amounts are in thousands)
Equity securities		$	3,023,603		2,383,095
Restricted investment		161,307			164,085
		$	3,184,910		2,547,180

The Company maintains a restricted investment for the benefit of the Company’s insurance carrier related to self-insurance reserves. This investment is held as collateral and is not used for self-insured claims payments.

(c) Investment Income

Interest and dividend income, amortization of premiums, accretion of discounts and realized gains and losses on the sale of debt and equity securities are included in investment income. Interest income is accrued as earned. Dividend income is recognized as income on the ex-dividend date. The cost of debt and equity securities sold is based on the first-in, first-out method. With the adoption of the ASU, the fair value adjustment on equity securities held as of September 29, 2018 is also included in investment income.

In the following table, net realized gain on the sale of investments represents the difference between the cost and the proceeds from the sale of debt and equity securities. For the three and nine months ended September 29, 2018, the net realized gain on the sale of investments excludes the net gain on the sale of equity securities previously recognized through the fair value adjustment, which is presented separately.

Following is a summary of investment income for the three and nine months ended September 29, 2018 and September 30, 2017:

		Three Months Ended						Nine Months Ended
	September 29, 2018				September 30, 2017		September 29, 2018			September 30, 2017
	(Amounts are in thousands)
Interest income		$	21,822			16,984		60,077			59,031
Dividend income		10,904				11,123		32,802			28,994
Net realized gain on sale of investments		69,251				10,323		92,918			104,881
		101,977				38,430		185,797			192,906
Fair value adjustment (net unrealized gain) on equity securities held at end of period		166,267				—		217,314			—
Net gain on sale of equity securities previously recognized through fair value adjustment		(38,010		)		—		(60,424	)		—
		$	230,234			38,430		342,687			192,906

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PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(5) Consolidation of Joint Ventures and Long-Term Debt

From time to time, the Company enters into joint ventures (JV), in the legal form of limited liability companies, with certain real estate developers to partner in the development of shopping centers with the Company as the anchor tenant. The Company consolidates certain of these JVs in which it has a controlling financial interest. The Company is considered to have a controlling financial interest in a JV when it has (1) the power to direct the activities of the JV that most significantly impact the JV’s economic performance and (2) the obligation to absorb losses or the right to receive benefits from the JV that could potentially be significant to such JV.

The Company evaluates a JV using specific criteria to determine whether the Company has a controlling financial interest and is the primary beneficiary of the JV. Factors considered in determining whether the Company is the primary beneficiary include risk and reward sharing, experience and financial condition of the other JV members, voting rights, involvement in routine capital and operating decisions and each member’s influence over the JV owned shopping center’s economic performance.

Generally, most major JV decision making is shared between all members. In particular, the use and sale of JV assets, business plans and budgets are generally required to be approved by all members. However, the Company, through its anchor tenant operating lease agreement, has the power to direct the activities that most significantly influence the economic performance of the JV owned shopping center. Additionally, through its member equity interest in the JV, the Company will receive a significant portion of the JV’s benefits or is obligated to absorb a significant portion of the JV’s losses.

As of September 29, 2018, the carrying amounts of the assets and liabilities of the consolidated JVs were $147,414,000 and $74,408,000, respectively. As of December 30, 2017, the carrying amounts of the assets and liabilities of the consolidated JVs were $144,559,000 and $67,631,000, respectively. The assets are owned by and the liabilities are obligations of the JVs, not the Company, except for a portion of the long-term debt of certain JVs guaranteed by the Company. The JVs are financed with capital contributions from the members, loans and/or the cash flows generated by the JV owned shopping centers once in operation. Total earnings attributable to noncontrolling interests for 2018 and 2017 were immaterial. The Company’s involvement with these JVs does not have a significant effect on the Company’s financial condition, results of operations or cash flows.

The Company’s long-term debt results primarily from the consolidation of loans of certain JVs and loans assumed in connection with the acquisition of certain shopping centers with the Company as the anchor tenant. The Company assumed loans totaling $9,936,000 during the nine months ended September 29, 2018. No loans were assumed during the nine months ended September 30, 2017. Maturities of JV loans range from June 2020 through April 2027 and have variable interest rates based on a LIBOR index plus 175 to 250 basis points. Maturities of assumed shopping center loans range from December 2020 through January 2027 and have fixed interest rates ranging from 3.7% to 7.5%.

(6) Retirement Plan

The Company has a trusteed, noncontributory Employee Stock Ownership Plan (ESOP) for the benefit of eligible employees. Since the Company’s common stock is not traded on an established securities market, the ESOP includes a put option for shares of the Company’s common stock distributed from the ESOP. Shares are distributed from the ESOP primarily to separated vested participants and certain eligible participants who elect to diversify their account balances. Under the Company’s administration of the ESOP’s put option, if the owners of distributed shares desire to sell their shares, the Company is required to purchase the shares at fair value for a specified time period after distribution of the shares from the ESOP. The fair value of distributed shares subject to the put option totaled $312,521,000 and $311,315,000 as of September 29, 2018 and December 30, 2017, respectively. The cost of the shares held by the ESOP totaled $2,875,976,000 and $2,741,823,000 as of September 29, 2018 and December 30, 2017, respectively. Due to the Company’s obligation under the put option, the distributed shares subject to the put option and the shares held by the ESOP are classified as temporary equity in the mezzanine section of the condensed consolidated balance sheets and totaled $3,188,497,000 and $3,053,138,000 as of September 29, 2018 and December 30, 2017, respectively. The fair value of the shares held by the ESOP totaled $8,117,696,000 and $7,252,657,000 as of September 29, 2018 and December 30, 2017, respectively.

11

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(7) Accumulated Other Comprehensive Earnings

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the three months ended September 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at June 30, 2018		$	(56,387	)		(14,292	)		(70,679	)
Unrealized loss on debt securities		(2,076		)		—			(2,076	)
Net realized gain on debt securities reclassified to investment income		(181		)		—			(181	)
Amortization of actuarial loss reclassified to other nonoperating income, net		—				564			564
Net other comprehensive (losses) earnings		(2,257		)		564			(1,693	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at July 1, 2017		$	33,639			(5,691	)		27,948
Unrealized gain on debt and equity securities		49,043				—			49,043
Net realized gain on debt and equity securities reclassified to investment income		(6,334		)		—			(6,334	)
Net other comprehensive earnings		42,709				—			42,709
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

12

PUBLIX SUPER MARKETS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the nine months endedSeptember 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at December 30, 2017		$	168,057			(15,421	)		152,636
Unrealized loss on debt securities		(28,657		)		—			(28,657	)
Net realized loss on debt securities reclassified to investment income		266				—			266
Amortization of actuarial loss reclassified to other nonoperating income, net		—				1,693			1,693
Net other comprehensive (losses) earnings		(28,391		)		1,693			(26,698	)
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings		(198,310		)		—			(198,310	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at December 31, 2016		$	29,118			(5,691	)		23,427
Unrealized gain on debt and equity securities		111,585				—			111,585
Net realized gain on debt and equity securities reclassified to investment income		(64,355		)		—			(64,355	)
Net other comprehensive earnings		47,230				—			47,230
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

In 2018, the Company adopted the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. Prior to adoption of the ASU, equity securities were classified as available-for-sale and carried at fair value. Changes in fair value determined to be temporary were reported in other comprehensive earnings net of income taxes. Upon adoption of the ASU, the Company reclassified the cumulative effect of the net unrealized gain on equity securities net of income taxes as of December 31, 2017 of $198,310,000 from accumulated other comprehensive earnings to retained earnings.

(8) Subsequent Event

On October 1, 2018, the Company declared a quarterly dividend of $0.26 per share or $186,800,000, payable November 1, 2018 to stockholders of record as of the close of business October 15, 2018.

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Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

The Company is engaged in the retail food industry and as of September 29, 2018 operated 1,198 supermarkets in Florida, Georgia, Alabama, South Carolina, Tennessee, North Carolina and Virginia. For the nine months ended September 29, 2018, 35 supermarkets were opened (including eight replacement supermarkets) and 101 supermarkets were remodeled. Foursupermarkets were closed during the period. The replacement supermarkets that opened during the nine months ended September 29, 2018 replaced one of the supermarkets closed during the same period and seven supermarkets closed during 2017. Two of the remaining supermarkets closed in 2018 will be replaced on site in subsequent periods and one supermarket will not be replaced. In the normal course of operations, the Company replaces supermarkets and closes supermarkets that are not meeting performance expectations. The impact of future supermarket closings is not expected to be material.

Results of Operations

Sales

Sales for the three months ended September 29, 2018 were $8.8 billion as compared with $8.5 billion for the three months ended September 30, 2017, an increase of $268.2 million or 3.2%. The increase in sales for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to new supermarket sales and a 0.6% increase in comparable store sales (supermarkets open for the same weeks in both periods, including replacement supermarkets). The Company estimates the increase in sales for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was $250 million or 3.1% lower due to the impact of Hurricane Irma in September 2017. Excluding the impact of the hurricane, sales for the three months ended September 29, 2018 would have increased 6.3% and comparable store sales would have increased 3.7%. Comparable store sales for the three months ended September 29, 2018 increased primarily due to increased product costs, largely offset by the impact of the hurricane.

Sales for the nine months ended September 29, 2018 were $26.8 billion as compared with $25.6 billion for the nine months ended September 30, 2017, an increase of $1,193.9 million or 4.7%. The increase in sales for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was primarily due to new supermarket sales and a 2.5% increase in comparable store sales. The Company estimates the increase in sales for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was $250 million or 1.0% lower due to the impact of Hurricane Irma. Excluding the impact of the hurricane, sales for the nine months ended September 29, 2018 would have increased 5.7% and comparable store sales would have increased 3.5%. Comparable store sales for the nine months ended September 29, 2018 increased primarily due to increased product costs, partially offset by the impact of the hurricane.

Gross profit

Gross profit (sales less cost of merchandise sold) as a percentage of sales was 26.8% and 27.0% for the three months ended September 29, 2018 and September 30, 2017, respectively. Gross profit as a percentage of sales was 27.3% and 27.4% for the nine months ended September 29, 2018 and September 30, 2017, respectively. The decrease in gross profit as a percentage of sales for the three and nine months ended September 29, 2018 as compared with the three and nine months ended September 30, 2017 was primarily due to the effect of volume driven efficiencies experienced in 2017 related to Hurricane Irma.

Operating and administrative expenses

Operating and administrative expenses as a percentage of sales were 20.9% and 20.3% for the three months ended September 29, 2018 and September 30, 2017, respectively. The increase in operating and administrative expenses as a percentage of sales for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to an increase in payroll costs and the effect of volume driven efficiencies experienced in 2017 related to Hurricane Irma. Operating and administrative expenses as a percentage of sales were 20.5% for the nine months ended September 29, 2018 and September 30, 2017.

Operating profit

Operating profit as a percentage of sales was 6.6% and 7.5% for the three months ended September 29, 2018 and September 30, 2017, respectively. The decrease in operating profit as a percentage of sales for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to the increase in operating and administrative expenses as a percentage of sales. Operating profit as a percentage of sales was 7.7% and 7.8% for the nine months ended September 29, 2018 and September 30, 2017, respectively. Operating profit as a percentage of sales for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 remained relatively unchanged.

14

Investment income

Investment income was $230.2 million and $38.4 million for the three months ended September 29, 2018 and September 30, 2017, respectively. The increase in investment income for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to an increase in realized gains on the sale of equity securities and the adoption of the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. Excluding the impact of the ASU, investment income would have been $102.0 million for the three months ended September 29, 2018.

Investment income was $342.7 million and $192.9 million for the nine months ended September 29, 2018 and September 30, 2017, respectively. The increase in investment income for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was primarily due to the adoption of the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. Excluding the impact of the ASU, investment income would have been $185.8 million for the nine months ended September 29, 2018.

Income tax expense

The effective income tax rate was 18.6% and 31.2% for the three months ended September 29, 2018 and September 30, 2017, respectively. The decrease in the effective income tax rate for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to the decrease in the federal statutory income tax rate from 35% to 21% effective in 2018 due to the Tax Cuts and Jobs Act of 2017 (Tax Act) and an increase in investment related tax credits. The effective income tax rate was 20.0% and 31.6% for the nine months ended September 29, 2018 and September 30, 2017, respectively. The decrease in the effective income tax rate for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was primarily due to the decrease in the federal statutory income tax rate due to the Tax Act. The impact of the Tax Act decreased the Company’s income tax expense for the three and nine months ended September 29, 2018 by approximately $101 million and $288 million, respectively.

Net earnings

Net earnings were $677.7 million or $0.94 per share and $474.9 million or $0.63 per share for the three months ended September 29, 2018 and September 30, 2017, respectively. Net earnings as a percentage of sales were 7.7% and 5.6% for the three months ended September 29, 2018 and September 30, 2017, respectively. The increase in net earnings as a percentage of sales for the three months ended September 29, 2018 as compared with the three months ended September 30, 2017 was primarily due to the decrease in the effective income tax rate due to the Tax Act and the recognition of net unrealized gains on equity securities.

Net earnings were $1,974.2 million or $2.71 per share and $1,525.3 million or $2.01 per share for the nine months ended September 29, 2018 and September 30, 2017, respectively. Net earnings as a percentage of sales were 7.4% and 6.0% for the nine months ended September 29, 2018 and September 30, 2017, respectively. The increase in net earnings as a percentage of sales for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was primarily due to the decrease in the effective income tax rate due to the Tax Act and the recognition of net unrealized gains on equity securities.

Net earnings and earnings per share for the three and nine months ended September 29, 2018 were impacted by the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. Excluding the impact of the ASU, net earnings would have been $582.0 million or $0.80 per share and 6.6% as a percentage of sales for the three months ended September 29, 2018 and $1,857.2 million or $2.55 per share and 6.9% as a percentage of sales for the nine months ended September 29, 2018.

15

Non-GAAP Financial Measures

In addition to reporting financial results for the three and nine months ended September 29, 2018 in accordance with GAAP, the Company presents net earnings and earnings per share excluding the impact of the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings (fair value adjustment). These measures are not in accordance with, or an alternative to, GAAP. The Company excludes the fair value adjustment since it is primarily due to temporary equity market fluctuations that do not reflect the Company’s operations. The Company believes this information is useful in providing period-to-period comparisons of the results of operations. Following is a reconciliation of net earnings to net earnings excluding the impact of the fair value adjustment for the three and nine months ended September 29, 2018 (amounts are in millions, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 29, 2018				September 29, 2018
Net earnings		$	677.7			1,974.2
Fair value adjustment (net unrealized gain) on equity securities held at end of period		(166.3		)		(217.3	)
Net gain on sale of equity securities previously recognized through fair value adjustment		38.0				60.4
Income tax expense (1)		32.6				39.9
Net earnings excluding impact of fair value adjustment		$	582.0			1,857.2
Weighted average shares outstanding		723.2				729.4
Earnings per share excluding impact of fair value adjustment		$	0.80			2.55

⁽¹⁾  Income tax expense is based on the Company’s combined federal and state statutory income tax rates.

16

Liquidity and Capital Resources

Cash and cash equivalents, short-term investments and long-term investments totaled $7,469.8 million as of September 29, 2018, as compared with $7,013.2 million as ofDecember 30, 2017 and $7,171.2 million as of September 30, 2017.

Net cash provided by operating activities

Net cash provided by operating activities was $2,863.0 million and $2,813.0 million for the nine months ended September 29, 2018 and September 30, 2017, respectively. The increase in net cash provided by operating activities for the nine months ended September 29, 2018 as compared with the nine months ended September 30, 2017 was primarily due to the increase in net earnings, partially offset by 2017 federal income tax payments extended to 2018 due to Hurricane Irma.

Net cash used in investing activities

Net cash used in investing activities was $1,278.8 million and $819.0 million for the nine months ended September 29, 2018 and September 30, 2017, respectively. The primary use of net cash in investing activities for the nine months ended September 29, 2018 was funding capital expenditures and net increases in investment securities. Capital expenditures for the nine months ended September 29, 2018 totaled $1,098.8 million. These expenditures were incurred in connection with the opening of 35 supermarkets (including eight replacement supermarkets) and remodeling 101 supermarkets. Expenditures were also incurred for supermarkets and remodels in progress, new or enhanced information technology hardware and applications and the acquisition of shopping centers with the Company as the anchor tenant. For the nine months ended September 29, 2018, the payment for investments, net of the proceeds from the sale and maturity of such investments, was $189.4 million.

Net cash used in financing activities

Net cash used in financing activities was $1,547.8 million and $1,761.6 million for the nine months ended September 29, 2018 and September 30, 2017, respectively. The primary use of net cash in financing activities was funding net common stock repurchases and dividend payments. Net common stock repurchases totaled $964.0 million and $1,223.2 million for the nine months ended September 29, 2018 and September 30, 2017, respectively. The Company currently repurchases common stock at the stockholders’ request in accordance with the terms of the Employee Stock Purchase Plan (ESPP), Non-Employee Directors Stock Purchase Plan (Directors Plan), 401(k) Plan and ESOP. The amount of common stock offered to the Company for repurchase is not within the control of the Company, but is at the discretion of the stockholders. The Company expects to continue to repurchase its common stock, as offered by its stockholders from time to time, at its then current value. However, with the exception of certain shares distributed from the ESOP, such purchases are not required and the Company retains the right to discontinue them at any time.

Dividends

The Company paid quarterly dividends on its common stock totaling $547.7 million or $0.75 per share and $519.8 million or $0.6825 per share during the nine months ended September 29, 2018 and September 30, 2017, respectively.

Capital expenditures projection

Capital expenditures for the remainder of 2018 are expected to be approximately $430 million, primarily consisting of new supermarkets, remodeling existing supermarkets, new or enhanced information technology hardware and applications and the acquisition of shopping centers with the Company as the anchor tenant. The shopping center acquisitions are financed with internally generated funds and assumed debt, if prepayment penalties for the debt are determined to be significant. This capital program is subject to continuing change and review.

Cash requirements

In 2018, cash requirements for operations, capital expenditures, common stock repurchases and dividend payments are expected to be financed by internally generated funds or liquid assets. Based on the Company’s financial position, it is expected that short-term and long-term borrowings would be available to support the Company’s liquidity requirements, if needed.

17

Forward-Looking Statements

From time to time, certain information provided by the Company, including written or oral statements made by its representatives, may contain forward-looking information as defined in Section 21E of the Securities Exchange Act of 1934 (Exchange Act). Forward-looking information includes statements about the future performance of the Company, which is based on management’s assumptions and beliefs in light of the information currently available to them. When used, the words “plan,” “estimate,” “project,” “intend,” “expect,” “believe” and other similar expressions, as they relate to the Company, are intended to identify such forward-looking statements. These forward-looking statements are subject to uncertainties and other factors that could cause actual results to differ materially from those statements including, but not limited to, the following: competitive practices and pricing in the food and drug industries generally and particularly in the Company’s principal markets; results of programs to increase sales, including private label sales; results of programs to control or reduce costs; changes in buying, pricing and promotional practices; changes in shrink management; changes in the general economy; changes in consumer spending; changes in population, employment and job growth in the Company’s principal markets; and other factors affecting the Company’s business within or beyond the Company’s control. These factors include changes in the rate of inflation, changes in federal, state and local laws and regulations, adverse determinations with respect to litigation or other claims, ability to recruit and retain employees, increases in operating costs including, but not limited to, labor costs, credit card fees and utility costs, particularly electric rates, ability to construct new supermarkets or complete remodels as rapidly as planned and stability of product costs. Other factors and assumptions not identified above could also cause the actual results to differ materially from those set forth in the forward-looking statements. Except as may be required by applicable law, the Company assumes no obligation to publicly update these forward-looking statements.

Item 3.        Quantitative and Qualitative Disclosures About Market Risk

The Company does not utilize financial instruments for trading or other speculative purposes, nor does it utilize leveraged financial instruments. There have been no material changes in the market risk factors from those disclosed in the Company’s Form 10-K for the year ended December 30, 2017.

Item 4.    Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures pursuant to Exchange Act Rule 13a-15. Based upon this evaluation, the Chief Executive Officer and Chief Financial Officer each concluded that the Company’s disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified by the SEC’s rules and forms, and that such information has been accumulated and communicated to the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, in a manner that allows timely decisions regarding required disclosure. There have been no changes in the Company’s internal control over financial reporting identified in connection with the evaluation that occurred during the quarter ended September 29, 2018 that have materially affected, or are reasonably likely to materially affect, the internal control over financial reporting.

18

PART II. OTHER INFORMATION

Item 1.    Legal Proceedings

As reported in the Company’s Form 10-K for the year ended December 30, 2017, the Company is subject from time to time to various lawsuits, claims and charges arising in the normal course of business. The Company believes its recorded reserves are adequate in light of the probable and estimable liabilities. The estimated amount of reasonably possible losses for lawsuits, claims and charges, individually and in the aggregate, is considered to be immaterial. In the opinion of management, the ultimate resolution of these legal proceedings will not have a material adverse effect on the Company’s financial condition, results of operations or cash flows.

Item 1A.    Risk Factors

There have been no material changes in the risk factors from those disclosed in the Company’s Form 10-K for the year ended December 30, 2017.

Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities

Shares of common stock repurchased by the Company during the three months ended September 29, 2018 were as follows (amounts are in thousands, except per share amounts):

Period		Total Number of Shares Purchased		Average Price Paid per Share			Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs(1)	Approximate Dollar Value of Shares That May Yet Be Purchased Under the Plans or Programs(1)
July 1, 2018 through August 4, 2018			4,027		$	41.99	N/A	N/A
August 5, 2018 through September 1, 2018			2,138		42.55		N/A	N/A
September 2, 2018 through September 29, 2018			4,259		42.55		N/A	N/A
	Total		10,424		$	42.33	N/A	N/A

⁽¹⁾  Common stock is made available for sale by the Company only to its current employees and members of its Board of Directors through the ESPP and Directors Plan and to participants of the 401(k) Plan. In addition, common stock is provided to employees through the ESOP. The Company currently repurchases common stock subject to certain terms and conditions. The ESPP, Directors Plan, 401(k) Plan and ESOP each contain provisions prohibiting any transfer for value without the owner first offering the common stock to the Company.

The Company’s common stock is not traded on an established securities market. The amount of common stock offered to the Company for repurchase is not within the control of the Company, but is at the discretion of the stockholders. The Company does not believe that these repurchases of its common stock are within the scope of a publicly announced plan or program (although the terms of the plans discussed above have been communicated to the participants). Thus, the Company does not believe that it has made any repurchases during the three months ended September 29, 2018 required to be disclosed in the last two columns of the table.

Item 3.    Defaults Upon Senior Securities

Not Applicable

Item 4.    Mine Safety Disclosures

Not Applicable

19

Item 5.    Other Information

Not Applicable

Item 6.    Exhibits

31.1    Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2    Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1    Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2    Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101 The following financial information from the Quarterly Report on Form 10-Q for the quarter ended September 29, 2018 is formatted in Extensible Business Reporting Language: (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Earnings, (iii) Condensed Consolidated Statements of Comprehensive Earnings, (iv) Condensed Consolidated Statements of Cash Flows and (v) Notes to Condensed Consolidated Financial Statements.

20

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		PUBLIX SUPER MARKETS, INC.
Date:	November 1, 2018	/s/  John A. Attaway, Jr.
		John A. Attaway, Jr., Secretary
Date:	November 1, 2018	/s/  David P. Phillips
		David P. Phillips, Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

21

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

Certification

I, Randall T. Jones, Sr., certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Publix Super Markets, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 1, 2018

/s/ Randall T. Jones, Sr.

Randall T. Jones, Sr.

Chief Executive Officer and President

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

Certification

I, David P. Phillips, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Publix Super Markets, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 1, 2018

/s/ David P. Phillips

David P. Phillips

Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is being submitted in connection with the Quarterly Report of Publix Super Markets, Inc. (the “Company”) on Form 10-Q for the period ended September 29, 2018 (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

I, Randall T. Jones, Sr., Chief Executive Officer of the Company, certify, to the best of my knowledge, that on the date hereof:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 1, 2018

/s/ Randall T. Jones, Sr.

Randall T. Jones, Sr.

Chief Executive Officer and President

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is being submitted in connection with the Quarterly Report of Publix Super Markets, Inc. (the “Company”) on Form 10-Q for the period ended September 29, 2018 (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

I, David P. Phillips, Chief Financial Officer of the Company, certify, to the best of my knowledge, that on the date hereof:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 1, 2018

/s/ David P. Phillips

David P. Phillips

Executive Vice President and Chief Financial Officer

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Document and Entity Information - shares	9 Months Ended
	Sep. 29, 2018	Oct. 15, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 29, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	ck0000081061
Entity Registrant Name	PUBLIX SUPER MARKETS INC
Entity Central Index Key	0000081061
Current Fiscal Year End Date	--12-29
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		718,491,000

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Current assets:
Cash and cash equivalents	$ 616,283	$ 579,925
Short-term investments	575,195	915,579
Trade receivables	649,945	671,414
Inventories	1,752,610	1,876,519
Prepaid expenses	49,781	41,484
Total current assets	3,643,814	4,084,921
Long-term investments	6,278,318	5,517,732
Other noncurrent assets	502,556	583,149
Property, plant and equipment	14,089,076	13,085,492
Accumulated depreciation	(5,515,016)	(5,087,788)
Net property, plant and equipment	8,574,060	7,997,704
Total assets	18,998,748	18,183,506
Current liabilities:
Accounts payable	1,754,822	1,754,706
Accrued expenses:
Contributions to Retirement Plans	441,513	517,493
Self-insurance reserves	141,882	137,100
Salaries and wages	272,712	124,423
Other	494,300	329,420
Current portion of long-term debt	4,895	37,873
Federal and state income taxes	23,524	241,299
Total current liabilities	3,133,648	3,142,314
Deferred income taxes	399,678	360,952
Self-insurance reserves	224,529	218,598
Accrued postretirement benefit cost	113,661	113,461
Long-term debt	163,928	155,201
Other noncurrent liabilities	71,412	84,361
Total liabilities	4,106,856	4,074,887
Common stock related to Employee Stock Ownership Plan (ESOP)	3,188,497	3,053,138
Stockholders’ equity:
Common stock of $1 par value. Authorized 1,000,000 shares; issued 740,595 shares in 2018 and 733,440 shares in 2017	740,595	733,440
Additional paid-in capital	3,439,412	3,139,647
Retained earnings	11,669,368	10,044,564
Treasury stock at cost, 22,012 shares in 2018	(921,510)	0
Accumulated other comprehensive (losses) earnings	(72,372)	152,636
Common stock related to ESOP	(3,188,497)	(3,053,138)
Total stockholders’ equity	11,666,996	11,017,149
Noncontrolling interests	36,399	38,332
Total equity	14,891,892	14,108,619
Total liabilities and stockholders' equity	$ 18,998,748	$ 18,183,506

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 29, 2018	Dec. 30, 2017
Statement of Financial Position [Abstract]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	740,595,000	733,440,000
Treasury stock at cost, shares	22,012,000	0

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CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Revenues:
Sales	$ 8,788,762	$ 8,520,569	$ 26,814,561	$ 25,620,710
Other operating income	69,339	65,511	215,350	201,143
Total revenues	8,858,101	8,586,080	27,029,911	25,821,853
Costs and expenses:
Cost of merchandise sold	6,436,041	6,219,735	19,483,545	18,592,991
Operating and administrative expenses	1,838,908	1,731,551	5,486,465	5,240,753
Total costs and expenses	8,274,949	7,951,286	24,970,010	23,833,744
Operating profit	583,152	634,794	2,059,901	1,988,109
Investment income	230,234	38,430	342,687	192,906
Other nonoperating income, net	19,051	17,218	64,709	49,745
Earnings before income tax expense	832,437	690,442	2,467,297	2,230,760
Income tax expense	154,693	215,515	493,110	705,490
Net earnings	$ 677,744	$ 474,927	$ 1,974,187	$ 1,525,270
Weighted average shares outstanding	723,236	748,347	729,434	759,284
Basic and diluted earnings per share	$ 0.94	$ 0.63	$ 2.71	$ 2.01
Dividends paid per share	$ 0.26	$ 0.23	$ 0.75	$ 0.6825

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net earnings	$ 677,744	$ 474,927	$ 1,974,187	$ 1,525,270
Other comprehensive earnings:
Unrealized (loss) on debt securities net of income taxes in 2018. Unrealized gain on debt and equity securities net of income taxes in 2017.	(2,076)	49,043	(28,657)	111,585
Reclassification adjustment for net realized (gain) loss on debt securities net of income taxes in 2018. Reclassification adjustment for net realized (gain) on debt and equity securities net of income taxes in 2017.	(181)	(6,334)	266	(64,355)
Adjustment to postretirement benefit obligation net of income taxes in 2018.	564	0	1,693	0
Comprehensive earnings	$ 676,051	$ 517,636	$ 1,947,489	$ 1,572,500

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Unrealized (loss) on debt securities net of income taxes in 2018. Unrealized gain on debt and equity securities net of income taxes in 2017.	$ (708)	$ 30,884	$ (9,770)	$ 70,268
Reclassification adjustment for net realized (gain) loss on debt securities net of income taxes in 2018. Reclassification adjustment for net realized (gain) on debt and equity securities net of income taxes in 2017.	(62)	(3,989)	91	(40,526)
Adjustment to postretirement benefit obligation net of income taxes in 2018.	$ 192	$ 0	$ 577	$ 0

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities:
Cash received from customers	$ 26,976,556	$ 25,786,802
Cash paid to employees and suppliers	(23,613,609)	(22,593,366)
Income taxes paid	(548,092)	(478,456)
Self-insured claims paid	(292,064)	(270,036)
Dividends and interest received	140,673	185,542
Other operating cash receipts	211,856	197,277
Other operating cash payments	(12,329)	(14,748)
Net cash provided by operating activities	2,862,991	2,813,015
Cash flows from investing activities:
Payment for capital expenditures	(1,098,845)	(1,063,152)
Proceeds from sale of property, plant and equipment	9,408	4,460
Payment for investments	(1,941,469)	(2,353,947)
Proceeds from sale and maturity of investments	1,752,100	2,593,592
Net cash used in investing activities	(1,278,806)	(819,047)
Cash flows from financing activities:
Payment for acquisition of common stock	(1,192,046)	(1,438,628)
Proceeds from sale of common stock	228,032	215,424
Dividends paid	(547,693)	(519,787)
Repayment of long-term debt	(42,253)	(46,019)
Other, net	6,133	27,418
Net cash used in financing activities	(1,547,827)	(1,761,592)
Net increase in cash and cash equivalents	36,358	232,376
Cash and cash equivalents at beginning of period	579,925	438,319
Cash and cash equivalents at end of period	616,283	670,695
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	1,974,187	1,525,270
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	501,098	484,307
Increase in last-in, first out (LIFO) reserve	22,926	20,720
Retirement contributions paid or payable in common stock	273,950	280,571
Deferred income taxes	47,828	36,311
Loss on disposal and impairment of property, plant and equipment	10,612	1,991
Gain on investments	(249,808)	(104,881)
Net amortization of investments	50,357	87,982
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables	21,566	67,952
Inventories	100,983	(4,632)
Prepaid expenses and other noncurrent assets	64,758	(5,410)
Accounts payable and accrued expenses	262,581	264,196
Self-insurance reserves	10,713	1,692
Federal and state income taxes	(217,775)	162,748
Other noncurrent liabilities	(10,985)	(5,802)
Total adjustments	888,804	1,287,745
Net cash provided by operating activities	$ 2,862,991	$ 2,813,015

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Basis of Presentation (Notes)

9 Months Ended

Sep. 29, 2018

Accounting Policies [Abstract]

Basis of Presentation [Text Block]

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Publix Super Markets, Inc. and subsidiaries (Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial reporting. Accordingly, the accompanying statements do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, these statements include all adjustments that are of a normal and recurring nature necessary to present fairly the Company’s financial position and results of operations. Due to the seasonal nature of the Company’s business, the results of operations for the three and nine months ended September 29, 2018 are not necessarily indicative of the results for the entire 2018 fiscal year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 30, 2017.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

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Recently Issued Accounting Standard (Notes)

9 Months Ended

Sep. 29, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recently Issued Accounting Standard [Text Block]

(2) Recently Issued Accounting Standards

In June 2016, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) requiring companies to change the methodology used to measure credit losses on financial instruments. The ASU is effective for reporting periods beginning after December 15, 2019 with early adoption permitted only for reporting periods beginning after December 15, 2018.  The Company does not expect the adoption of the ASU to have a material effect on the Company’s financial condition or results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In February 2016, the FASB issued an ASU requiring the lease rights and obligations arising from lease contracts, including existing and new arrangements, be recognized as assets and liabilities on the balance sheet. The ASU is effective for reporting periods beginning after December 15, 2018 with early adoption permitted. While the Company is still evaluating the ASU, the Company expects the adoption of the ASU to have a material effect on the Company’s financial condition due to the recognition of approximately $3 billion of lease rights and obligations as assets and liabilities on the consolidated balance sheets. The Company does not expect the adoption of the ASU to have a material effect on the Company’s results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In January 2016, the FASB issued an ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company prospectively adopted the ASU and reclassified the cumulative effect of the net unrealized gain on equity securities net of income taxes as of December 31, 2017 of $198,310,000 from accumulated other comprehensive earnings to retained earnings. The effect of the ASU on results of operations will vary with changes in the fair value of equity securities.

In May 2014, the FASB issued an ASU requiring additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company adopted the ASU on a modified retrospective basis. The adoption of the ASU did not have a material effect on the Company’s financial condition, results of operations or cash flows.

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Fair Value of Financial Instruments (Notes)

9 Months Ended

Sep. 29, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments [Text Block]

(3) Fair Value of Financial Instruments

The fair value of certain of the Company’s financial instruments, including cash and cash equivalents, trade receivables and accounts payable, approximates their respective carrying amounts due to their short-term maturity.

The fair value of investments is based on market prices using the following measurement categories:

Level 1 – Fair value is determined by using quoted prices in active markets for identical investments. Investments included in this category are equity securities (exchange traded funds and individual equity securities) and a restricted investment held as collateral (money market/mutual fund), collectively referred to as equity securities.

Level 2 – Fair value is determined by using other than quoted prices. By using observable inputs (for example, benchmark yields, interest rates, reported trades and broker dealer quotes), the fair value is determined through processes such as benchmark curves, benchmarking of like securities and matrix pricing of corporate, state and municipal bonds by using pricing of similar bonds based on coupons, ratings and maturities. Investments included in this category are primarily debt securities (tax exempt and taxable bonds).

Level 3 – Fair value is determined by using other than observable inputs. Fair value is determined by using the best information available in the circumstances and requires significant management judgment or estimation. No investments are currently included in this category.

Following is a summary of fair value measurements for investments as of September 29, 2018 and December 30, 2017:

	Fair Value		Level 1	Level 2	Level 3
	(Amounts are in thousands)
September 29, 2018	$	6,853,513	2,983,110	3,870,403	—
December 30, 2017	6,433,311		2,545,320	3,887,991	—

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Investments (Notes)

9 Months Ended

Sep. 29, 2018

Investments, Debt and Equity Securities [Abstract]

Investments [Tex Block]

(4) Investments

(a) Debt Securities

Debt securities are classified as available-for-sale and carried at fair value. The Company evaluates whether debt securities are other-than-temporarily impaired (OTTI) based on criteria that include the extent to which the cost (cost of the debt security adjusted for amortization of premium or accretion of discount) exceeds market value, the duration of the market value decline, the credit rating of the issuer or security, the failure of the issuer to make scheduled principal or interest payments and the financial health and prospects of the issuer or security.

Declines in the fair value of debt securities determined to be OTTI are recognized in earnings and reported as OTTI losses. Debt securities with unrealized losses are considered OTTI if the Company intends to sell the debt security or if the Company will be required to sell the debt security prior to any anticipated recovery. If the Company determines that a debt security is OTTI under these circumstances, the impairment recognized in earnings is measured as the difference between the cost and the fair value. A debt security is also determined to be OTTI if the Company does not expect to recover the cost of the debt security. However, in this circumstance, if the Company does not intend to sell the debt security and will not be required to sell the debt security, the impairment recognized in earnings equals the estimated credit loss as measured by the difference between the present value of expected cash flows and the cost of the debt security. Expected cash flows are discounted using the debt security’s effective interest rate. Changes in the fair value of debt securities determined to be temporary are reported in other comprehensive earnings net of income taxes and included as a component of stockholders’ equity.

Following is a summary of debt securities as of September 29, 2018 and December 30, 2017:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	1,340,795		110		20,347	1,320,558
Taxable bonds	2,406,444			340		58,739	2,348,045
	$	3,747,239		450		79,086	3,668,603
December 30, 2017
Tax exempt bonds	$	1,811,523		602		16,420	1,795,705
Taxable bonds	2,115,174			695		25,443	2,090,426
	$	3,926,697		1,297		41,863	3,886,131

The cost and fair value of debt securities by expected maturity as of September 29, 2018 and December 30, 2017 are as follows:

	September 29, 2018			December 30, 2017
	Cost		Fair Value	Cost	Fair Value
	(Amounts are in thousands)
Due in one year or less	$	577,480	575,195	917,576	915,579
Due after one year through five years	2,713,698		2,640,263	2,794,099	2,757,504
Due after five years through ten years	448,838		445,862	205,792	203,533
Due after ten years	7,223		7,283	9,230	9,515
	$	3,747,239	3,668,603	3,926,697	3,886,131

Following is a summary of temporarily impaired debt securities by the time period impaired as of September 29, 2018 and December 30, 2017:

	Less Than 12 Months				12 Months or Longer			Total
	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	775,195		8,384	537,591		11,963	1,312,786		20,347
Taxable bonds	1,214,748			20,329	1,017,301		38,410	2,232,049		58,739
	$	1,989,943		28,713	1,554,892		50,373	3,544,835		79,086
December 30, 2017
Tax exempt bonds	$	1,543,151		13,827	136,217		2,593	1,679,368		16,420
Taxable bonds	811,886			4,908	1,153,645		20,535	1,965,531		25,443
	$	2,355,037		18,735	1,289,862		23,128	3,644,899		41,863

There are 436 debt securities contributing to the total unrealized losses of $79,086,000 as of September 29, 2018. Unrealized losses related to debt securities are primarily due to increases in interest rates impacting the market value of certain bonds. The Company continues to receive scheduled principal and interest payments on these debt securities.

(b) Equity Securities

In 2018, the Company adopted the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings (fair value adjustment). The fair value adjustment also includes the cumulative effect of the ASU as of December 31, 2017 reclassified from accumulated other comprehensive earnings to retained earnings.

Prior to adoption of the ASU, changes in the fair value of equity securities were accounted for similar to changes in the fair value of debt securities. Equity securities were classified as available-for-sale and carried at fair value. Declines in the fair value of equity securities determined to be OTTI were recognized in earnings and reported as OTTI losses. An equity security was determined to be OTTI if the Company did not expect to recover the cost of the equity security. Changes in the fair value of equity securities determined to be temporary were reported in other comprehensive earnings net of income taxes and included as a component of stockholders’ equity.

Following is a summary of the fair value of equity securities as of September 29, 2018 and December 30, 2017:

	September 29, 2018			December 30, 2017
	(Amounts are in thousands)
Equity securities		$	3,023,603		2,383,095
Restricted investment		161,307			164,085
		$	3,184,910		2,547,180

The Company maintains a restricted investment for the benefit of the Company’s insurance carrier related to self-insurance reserves. This investment is held as collateral and is not used for self-insured claims payments.

(c) Investment Income

Interest and dividend income, amortization of premiums, accretion of discounts and realized gains and losses on the sale of debt and equity securities are included in investment income. Interest income is accrued as earned. Dividend income is recognized as income on the ex-dividend date. The cost of debt and equity securities sold is based on the first-in, first-out method. With the adoption of the ASU, the fair value adjustment on equity securities held as of September 29, 2018 is also included in investment income.

In the following table, net realized gain on the sale of investments represents the difference between the cost and the proceeds from the sale of debt and equity securities. For the three and nine months ended September 29, 2018, the net realized gain on the sale of investments excludes the net gain on the sale of equity securities previously recognized through the fair value adjustment, which is presented separately.

Following is a summary of investment income for the three and nine months ended September 29, 2018 and September 30, 2017:

		Three Months Ended						Nine Months Ended
	September 29, 2018				September 30, 2017		September 29, 2018			September 30, 2017
	(Amounts are in thousands)
Interest income		$	21,822			16,984		60,077			59,031
Dividend income		10,904				11,123		32,802			28,994
Net realized gain on sale of investments		69,251				10,323		92,918			104,881
		101,977				38,430		185,797			192,906
Fair value adjustment (net unrealized gain) on equity securities held at end of period		166,267				—		217,314			—
Net gain on sale of equity securities previously recognized through fair value adjustment		(38,010		)		—		(60,424	)		—
		$	230,234			38,430		342,687			192,906

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Consolidation of Joint Ventures and Long-Term Debt (Notes)

9 Months Ended

Sep. 29, 2018

Consolidation Of Joint Ventures And Long Term Debt [Abstract]

Consolidation Of Joint Ventures And Long Term Debt Disclosure [Text Block]

(5) Consolidation of Joint Ventures and Long-Term Debt

From time to time, the Company enters into joint ventures (JV), in the legal form of limited liability companies, with certain real estate developers to partner in the development of shopping centers with the Company as the anchor tenant. The Company consolidates certain of these JVs in which it has a controlling financial interest. The Company is considered to have a controlling financial interest in a JV when it has (1) the power to direct the activities of the JV that most significantly impact the JV’s economic performance and (2) the obligation to absorb losses or the right to receive benefits from the JV that could potentially be significant to such JV.

The Company evaluates a JV using specific criteria to determine whether the Company has a controlling financial interest and is the primary beneficiary of the JV. Factors considered in determining whether the Company is the primary beneficiary include risk and reward sharing, experience and financial condition of the other JV members, voting rights, involvement in routine capital and operating decisions and each member’s influence over the JV owned shopping center’s economic performance.

Generally, most major JV decision making is shared between all members. In particular, the use and sale of JV assets, business plans and budgets are generally required to be approved by all members. However, the Company, through its anchor tenant operating lease agreement, has the power to direct the activities that most significantly influence the economic performance of the JV owned shopping center. Additionally, through its member equity interest in the JV, the Company will receive a significant portion of the JV’s benefits or is obligated to absorb a significant portion of the JV’s losses.

As of September 29, 2018, the carrying amounts of the assets and liabilities of the consolidated JVs were $147,414,000 and $74,408,000, respectively. As of December 30, 2017, the carrying amounts of the assets and liabilities of the consolidated JVs were $144,559,000 and $67,631,000, respectively. The assets are owned by and the liabilities are obligations of the JVs, not the Company, except for a portion of the long-term debt of certain JVs guaranteed by the Company. The JVs are financed with capital contributions from the members, loans and/or the cash flows generated by the JV owned shopping centers once in operation. Total earnings attributable to noncontrolling interests for 2018 and 2017 were immaterial. The Company’s involvement with these JVs does not have a significant effect on the Company’s financial condition, results of operations or cash flows.

The Company’s long-term debt results primarily from the consolidation of loans of certain JVs and loans assumed in connection with the acquisition of certain shopping centers with the Company as the anchor tenant. The Company assumed loans totaling $9,936,000 during the nine months ended September 29, 2018. No loans were assumed during the nine months ended September 30, 2017. Maturities of JV loans range from June 2020 through April 2027 and have variable interest rates based on a LIBOR index plus 175 to 250 basis points. Maturities of assumed shopping center loans range from December 2020 through January 2027 and have fixed interest rates ranging from 3.7% to 7.5%.

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Retirement Plan (Notes)

9 Months Ended

Sep. 29, 2018

Retirement Benefits [Abstract]

Retirement Plan [Text Block]

(6) Retirement Plan

The Company has a trusteed, noncontributory Employee Stock Ownership Plan (ESOP) for the benefit of eligible employees. Since the Company’s common stock is not traded on an established securities market, the ESOP includes a put option for shares of the Company’s common stock distributed from the ESOP. Shares are distributed from the ESOP primarily to separated vested participants and certain eligible participants who elect to diversify their account balances. Under the Company’s administration of the ESOP’s put option, if the owners of distributed shares desire to sell their shares, the Company is required to purchase the shares at fair value for a specified time period after distribution of the shares from the ESOP. The fair value of distributed shares subject to the put option totaled $312,521,000 and $311,315,000 as of September 29, 2018 and December 30, 2017, respectively. The cost of the shares held by the ESOP totaled $2,875,976,000 and $2,741,823,000 as of September 29, 2018 and December 30, 2017, respectively. Due to the Company’s obligation under the put option, the distributed shares subject to the put option and the shares held by the ESOP are classified as temporary equity in the mezzanine section of the condensed consolidated balance sheets and totaled $3,188,497,000 and $3,053,138,000 as of September 29, 2018 and December 30, 2017, respectively. The fair value of the shares held by the ESOP totaled $8,117,696,000 and $7,252,657,000 as of September 29, 2018 and December 30, 2017, respectively.

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Accumulated Other Comprehensive Earnings (Notes)

9 Months Ended

Sep. 29, 2018

Equity [Abstract]

Comprehensive Income (Loss) Note [Text Block]

(7) Accumulated Other Comprehensive Earnings

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the three months ended September 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at June 30, 2018		$	(56,387	)		(14,292	)		(70,679	)
Unrealized loss on debt securities		(2,076		)		—			(2,076	)
Net realized gain on debt securities reclassified to investment income		(181		)		—			(181	)
Amortization of actuarial loss reclassified to other nonoperating income, net		—				564			564
Net other comprehensive (losses) earnings		(2,257		)		564			(1,693	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at July 1, 2017		$	33,639			(5,691	)		27,948
Unrealized gain on debt and equity securities		49,043				—			49,043
Net realized gain on debt and equity securities reclassified to investment income		(6,334		)		—			(6,334	)
Net other comprehensive earnings		42,709				—			42,709
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the nine months endedSeptember 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at December 30, 2017		$	168,057			(15,421	)		152,636
Unrealized loss on debt securities		(28,657		)		—			(28,657	)
Net realized loss on debt securities reclassified to investment income		266				—			266
Amortization of actuarial loss reclassified to other nonoperating income, net		—				1,693			1,693
Net other comprehensive (losses) earnings		(28,391		)		1,693			(26,698	)
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings		(198,310		)		—			(198,310	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at December 31, 2016		$	29,118			(5,691	)		23,427
Unrealized gain on debt and equity securities		111,585				—			111,585
Net realized gain on debt and equity securities reclassified to investment income		(64,355		)		—			(64,355	)
Net other comprehensive earnings		47,230				—			47,230
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

In 2018, the Company adopted the ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. Prior to adoption of the ASU, equity securities were classified as available-for-sale and carried at fair value. Changes in fair value determined to be temporary were reported in other comprehensive earnings net of income taxes. Upon adoption of the ASU, the Company reclassified the cumulative effect of the net unrealized gain on equity securities net of income taxes as of December 31, 2017 of $198,310,000 from accumulated other comprehensive earnings to retained earnings.

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Subsequent Event (Notes)

9 Months Ended

Sep. 29, 2018

Subsequent Events [Abstract]

Subsequent Events [Text Block]

(8) Subsequent Event

On October 1, 2018, the Company declared a quarterly dividend of $0.26 per share or $186,800,000, payable November 1, 2018 to stockholders of record as of the close of business October 15, 2018.

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Basis of Presentation (Policies)

9 Months Ended

Sep. 29, 2018

Accounting Policies [Abstract]

Basis of Presentation [Policy Text Block]

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Publix Super Markets, Inc. and subsidiaries (Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial reporting. Accordingly, the accompanying statements do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, these statements include all adjustments that are of a normal and recurring nature necessary to present fairly the Company’s financial position and results of operations. Due to the seasonal nature of the Company’s business, the results of operations for the three and nine months ended September 29, 2018 are not necessarily indicative of the results for the entire 2018 fiscal year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 30, 2017.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

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Recently Issued Accounting Standard (Policies)

9 Months Ended

Sep. 29, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recently Issued Accounting Standard [Policy Text Block]

(2) Recently Issued Accounting Standards

In June 2016, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) requiring companies to change the methodology used to measure credit losses on financial instruments. The ASU is effective for reporting periods beginning after December 15, 2019 with early adoption permitted only for reporting periods beginning after December 15, 2018.  The Company does not expect the adoption of the ASU to have a material effect on the Company’s financial condition or results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In February 2016, the FASB issued an ASU requiring the lease rights and obligations arising from lease contracts, including existing and new arrangements, be recognized as assets and liabilities on the balance sheet. The ASU is effective for reporting periods beginning after December 15, 2018 with early adoption permitted. While the Company is still evaluating the ASU, the Company expects the adoption of the ASU to have a material effect on the Company’s financial condition due to the recognition of approximately $3 billion of lease rights and obligations as assets and liabilities on the consolidated balance sheets. The Company does not expect the adoption of the ASU to have a material effect on the Company’s results of operations. The adoption of the ASU will have no effect on the Company’s cash flows.

In January 2016, the FASB issued an ASU requiring equity securities be measured at fair value with net unrealized gains and losses from changes in the fair value recognized in earnings. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company prospectively adopted the ASU and reclassified the cumulative effect of the net unrealized gain on equity securities net of income taxes as of December 31, 2017 of $198,310,000 from accumulated other comprehensive earnings to retained earnings. The effect of the ASU on results of operations will vary with changes in the fair value of equity securities.

In May 2014, the FASB issued an ASU requiring additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The ASU is effective for reporting periods beginning after December 15, 2017. In 2018, the Company adopted the ASU on a modified retrospective basis. The adoption of the ASU did not have a material effect on the Company’s financial condition, results of operations or cash flows.

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Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 29, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements for Investments [Table Text Block]

Following is a summary of fair value measurements for investments as of September 29, 2018 and December 30, 2017:

	Fair Value		Level 1	Level 2	Level 3
	(Amounts are in thousands)
September 29, 2018	$	6,853,513	2,983,110	3,870,403	—
December 30, 2017	6,433,311		2,545,320	3,887,991	—

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Investments (Tables)

9 Months Ended

Sep. 29, 2018

Investments, Debt and Equity Securities [Abstract]

Available For Sale Debt Securities [Table Text Block]

Following is a summary of debt securities as of September 29, 2018 and December 30, 2017:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	1,340,795		110		20,347	1,320,558
Taxable bonds	2,406,444			340		58,739	2,348,045
	$	3,747,239		450		79,086	3,668,603
December 30, 2017
Tax exempt bonds	$	1,811,523		602		16,420	1,795,705
Taxable bonds	2,115,174			695		25,443	2,090,426
	$	3,926,697		1,297		41,863	3,886,131

Amortized Cost and Fair Value of Available For Sale Debt Securities by Expected Maturity [Table Text Block]

The cost and fair value of debt securities by expected maturity as of September 29, 2018 and December 30, 2017 are as follows:

	September 29, 2018			December 30, 2017
	Cost		Fair Value	Cost	Fair Value
	(Amounts are in thousands)
Due in one year or less	$	577,480	575,195	917,576	915,579
Due after one year through five years	2,713,698		2,640,263	2,794,099	2,757,504
Due after five years through ten years	448,838		445,862	205,792	203,533
Due after ten years	7,223		7,283	9,230	9,515
	$	3,747,239	3,668,603	3,926,697	3,886,131

Temporarily Impaired Available For Sale Debt Securities by Time Period Impaired [Table Text Block]

Following is a summary of temporarily impaired debt securities by the time period impaired as of September 29, 2018 and December 30, 2017:

	Less Than 12 Months				12 Months or Longer			Total
	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
	(Amounts are in thousands)
September 29, 2018
Tax exempt bonds	$	775,195		8,384	537,591		11,963	1,312,786		20,347
Taxable bonds	1,214,748			20,329	1,017,301		38,410	2,232,049		58,739
	$	1,989,943		28,713	1,554,892		50,373	3,544,835		79,086
December 30, 2017
Tax exempt bonds	$	1,543,151		13,827	136,217		2,593	1,679,368		16,420
Taxable bonds	811,886			4,908	1,153,645		20,535	1,965,531		25,443
	$	2,355,037		18,735	1,289,862		23,128	3,644,899		41,863

Equity Securities [Table Text Block]

Following is a summary of the fair value of equity securities as of September 29, 2018 and December 30, 2017:

	September 29, 2018			December 30, 2017
	(Amounts are in thousands)
Equity securities		$	3,023,603		2,383,095
Restricted investment		161,307			164,085
		$	3,184,910		2,547,180

Investment Income [Table Text Block]

Following is a summary of investment income for the three and nine months ended September 29, 2018 and September 30, 2017:

		Three Months Ended						Nine Months Ended
	September 29, 2018				September 30, 2017		September 29, 2018			September 30, 2017
	(Amounts are in thousands)
Interest income		$	21,822			16,984		60,077			59,031
Dividend income		10,904				11,123		32,802			28,994
Net realized gain on sale of investments		69,251				10,323		92,918			104,881
		101,977				38,430		185,797			192,906
Fair value adjustment (net unrealized gain) on equity securities held at end of period		166,267				—		217,314			—
Net gain on sale of equity securities previously recognized through fair value adjustment		(38,010		)		—		(60,424	)		—
		$	230,234			38,430		342,687			192,906

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Accumulated Other Comprehensive Earnings (Tables)

9 Months Ended

Sep. 29, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the three months ended September 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at June 30, 2018		$	(56,387	)		(14,292	)		(70,679	)
Unrealized loss on debt securities		(2,076		)		—			(2,076	)
Net realized gain on debt securities reclassified to investment income		(181		)		—			(181	)
Amortization of actuarial loss reclassified to other nonoperating income, net		—				564			564
Net other comprehensive (losses) earnings		(2,257		)		564			(1,693	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at July 1, 2017		$	33,639			(5,691	)		27,948
Unrealized gain on debt and equity securities		49,043				—			49,043
Net realized gain on debt and equity securities reclassified to investment income		(6,334		)		—			(6,334	)
Net other comprehensive earnings		42,709				—			42,709
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

A reconciliation of the changes in accumulated other comprehensive earnings (losses) net of income taxes for the nine months endedSeptember 29, 2018 and September 30, 2017 is as follows:

	Investments				Postretirement Benefits			Accumulated Other Comprehensive Earnings
		(Amounts are in thousands)
2018
Balances at December 30, 2017		$	168,057			(15,421	)		152,636
Unrealized loss on debt securities		(28,657		)		—			(28,657	)
Net realized loss on debt securities reclassified to investment income		266				—			266
Amortization of actuarial loss reclassified to other nonoperating income, net		—				1,693			1,693
Net other comprehensive (losses) earnings		(28,391		)		1,693			(26,698	)
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings		(198,310		)		—			(198,310	)
Balances at September 29, 2018		$	(58,644	)		(13,728	)		(72,372	)
2017
Balances at December 31, 2016		$	29,118			(5,691	)		23,427
Unrealized gain on debt and equity securities		111,585				—			111,585
Net realized gain on debt and equity securities reclassified to investment income		(64,355		)		—			(64,355	)
Net other comprehensive earnings		47,230				—			47,230
Balances at September 30, 2017		$	76,348			(5,691	)		70,657

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Recently Issued Accounting Standard Recently Issued Accounting Principles (Details)	9 Months Ended
	Sep. 29, 2018 USD ($)
Change In Accounting Principle [Abstract]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 198,310,000

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Fair Value Measurements for Investments (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities	$ 6,853,513	$ 6,433,311
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities	2,983,110	2,545,320
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities	3,870,403	3,887,991
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities	$ 0	$ 0

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Investments Available for Sale Securities Reconciliation (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 29, 2018	Dec. 30, 2017
Debt Securities, Available-for-sale [Line Items]
Cost	$ 3,747,239	$ 3,926,697
Debt Securities, Available-for-sale, Unrealized Gain	450	1,297
Debt Securities, Available-for-sale, Unrealized Loss	79,086	41,863
Debt Securities, Available-for-sale	3,668,603	3,886,131
Nontaxable Municipal Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Cost	1,340,795	1,811,523
Debt Securities, Available-for-sale, Unrealized Gain	110	602
Debt Securities, Available-for-sale, Unrealized Loss	20,347	16,420
Debt Securities, Available-for-sale	1,320,558	1,795,705
Fixed Income Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Cost	2,406,444	2,115,174
Debt Securities, Available-for-sale, Unrealized Gain	340	695
Debt Securities, Available-for-sale, Unrealized Loss	58,739	25,443
Debt Securities, Available-for-sale	$ 2,348,045	$ 2,090,426

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Amortized Cost and Fair Value of Available for Sale Securities by Expected Maturity (Detail) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Cost
Due in one year or less	$ 577,480	$ 917,576
Due after one year through five years	2,713,698	2,794,099
Due after five years through ten years	448,838	205,792
Due after ten years	7,223	9,230
Total	3,747,239	3,926,697
Fair Value
Due in one year or less	575,195	915,579
Due after one year through five years	2,640,263	2,757,504
Due after five years through ten years	445,862	203,533
Due after ten years	7,283	9,515
Total	$ 3,668,603	$ 3,886,131

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Temporarily Impaired Available for Sale Securities by Time Period Impaired (Detail) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,989,943	$ 2,355,037
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	28,713	18,735
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,554,892	1,289,862
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	50,373	23,128
Debt Securities, Available-for-sale, Unrealized Loss Position	3,544,835	3,644,899
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	79,086	41,863
Nontaxable Municipal Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	775,195	1,543,151
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	8,384	13,827
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	537,591	136,217
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	11,963	2,593
Debt Securities, Available-for-sale, Unrealized Loss Position	1,312,786	1,679,368
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	20,347	16,420
Fixed Income Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,214,748	811,886
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	20,329	4,908
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,017,301	1,153,645
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	38,410	20,535
Debt Securities, Available-for-sale, Unrealized Loss Position	2,232,049	1,965,531
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 58,739	$ 25,443

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Investments - Additional Information (Detail) $ in Thousands	Sep. 29, 2018 USD ($) AFS_security	Dec. 30, 2017 USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract]
Number of debt securities issues contributing to total unrealized loss | AFS_security	436
Total, unrealized Losses | $	$ 79,086	$ 41,863

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Investments Equity Securities (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Equity Securities [Line Items]
Equity Securities, FV-NI	$ 3,184,910	$ 2,547,180
Equity Securities [Member]
Equity Securities [Line Items]
Equity Securities, FV-NI	3,023,603	2,383,095
Equity Securities, Restricted [Member]
Equity Securities [Line Items]
Equity Securities, FV-NI, Restricted	$ 161,307	$ 164,085

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Investments Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Investment Income, Net [Abstract]
Interest Income	$ 21,822	$ 16,984	$ 60,077	$ 59,031
Dividend income	10,904	11,123	32,802	28,994
Net realized gain on sale of investments	69,251	10,323	92,918	104,881
Investment Income Before Fair Value Adjustment	101,977	38,430	185,797	192,906
Fair value adjustment (net unrealized gain) on equity securities held at end of period	166,267	0	217,314	0
Net gain on sale of equity securities previously recognized through fair value adjustment	(38,010)	0	(60,424)	0
Investment Income	$ 230,234	$ 38,430	$ 342,687	$ 192,906

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Consolidation of Joint Ventures and Long-Term Debt Joint Venture - Additional Information (Details) - USD ($)	Sep. 29, 2018	Dec. 30, 2017
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	$ 147,414,000	$ 144,559,000
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	$ 74,408,000	$ 67,631,000

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Consolidation of Joint Ventures and Long-Term Debt Long-Term Debt Assumptions, Maturities and Interest Rates (Details) - USD ($)	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Loans Assumed	$ 9,936,000	$ 0.00
JV Loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Month And Year	June 2020
Debt Instrument, Basis Spread on Variable Rate	1.75%
JV Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Month And Year	April 2027
Debt Instrument, Basis Spread on Variable Rate	2.50%
Shopping Center Loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Month And Year	December 2020
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Shopping Center Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Month And Year	January 2027
Debt Instrument, Interest Rate, Stated Percentage	7.50%

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Retirement Plan - Additional Information (Detail) - USD ($)	Sep. 29, 2018	Dec. 30, 2017
Retirement Benefits [Abstract]
Distributed shares subject to put option, fair value	$ 312,521,000	$ 311,315,000
ESOP, shares cost	2,875,976,000	2,741,823,000
Common stock related to ESOP	3,188,497,000	3,053,138,000
ESOP shares, fair value	$ 8,117,696,000	$ 7,252,657,000

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Accumulated Other Comprehensive Earnings (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balances at Beginning of Period	$ (70,679)	$ 27,948	$ 152,636	$ 23,427
Unrealized (loss) on debt securities in 2018. Unrealized gain on debt and equity securities in 2017.	(2,076)	49,043	(28,657)	111,585
Net realized (gain) loss on debt securities reclassified to investment income in 2018. Net realized (gain) on debt and equity securities reclassified to investment income in 2017.	(181)	(6,334)	266	(64,355)
Amortization of actuarial loss reclassified to other nonoperating income, net	564	0	1,693	0
Net other comprehensive (losses) earnings	(1,693)	42,709	(26,698)	47,230
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings			(198,310)
Balances at End of Period	(72,372)	70,657	(72,372)	70,657
AFS Securities [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balances at Beginning of Period	(56,387)	33,639	168,057	29,118
Unrealized (loss) on debt securities in 2018. Unrealized gain on debt and equity securities in 2017.	(2,076)	49,043	(28,657)	111,585
Net realized (gain) loss on debt securities reclassified to investment income in 2018. Net realized (gain) on debt and equity securities reclassified to investment income in 2017.	(181)	(6,334)	266	(64,355)
Net other comprehensive (losses) earnings	(2,257)	42,709	(28,391)	47,230
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings			(198,310)
Balances at End of Period	(58,644)	76,348	(58,644)	76,348
Postretirement Benefits [Member}
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balances at Beginning of Period	(14,292)	(5,691)	(15,421)	(5,691)
Amortization of actuarial loss reclassified to other nonoperating income, net	564	0	1,693	0
Net other comprehensive (losses) earnings	564	0	1,693	0
Balances at End of Period	$ (13,728)	$ (5,691)	$ (13,728)	$ (5,691)

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Accumulated Other Comprehensive Earnings Change in Accounting Principle (Details)	9 Months Ended
	Sep. 29, 2018 USD ($)
Change In Accounting Principle [Abstract]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 198,310,000

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Subsequent Event (Details) - Subsequent Event [Member] - USD ($)	Nov. 01, 2018	Oct. 15, 2018	Oct. 01, 2018
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared			$ 0.26
Dividends Payable, Date Declared			Oct. 01, 2018
Dividends Payable, Date to be Paid	Nov. 01, 2018
Dividends Payable, Date of Record		Oct. 15, 2018
Dividends, Common Stock, Cash			$ 186,800,000