Long-term Debt and Capitalized Lease Obligations - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 01, 2018	Feb. 24, 2018
Debt Instrument [Line Items]
Unamortized debt discounts	$ 215.7	$ 249.6
Deferred financing costs	58.9	79.7
Total debt	10,193.5	11,011.2
Less current maturities	(315.1)	(66.1)
Long-term portion	9,878.4	10,945.1
Secured debt \| Albertsons Term Loans due 2022 to 2025, interest rate range of 4.32% to 5.69%
Debt Instrument [Line Items]
Total debt	4,614.6	5,610.7
Senior notes \| Senior Unsecured Notes due 2024 and 2025, interest rate of 6.625% and 5.750%, respectively
Debt Instrument [Line Items]
Total debt	$ 2,478.8	2,476.1
Senior notes \| Albertsons Senior Unsecured Notes due 2024, interest rate of 6.625%
Debt Instrument [Line Items]
Stated interest rate percentage	6.625%
Senior notes \| Albertsons Senior Unsecured Notes due 2025, interest rate 5.750%
Debt Instrument [Line Items]
Stated interest rate percentage	5.75%
Notes payable \| New Albertson's, L.P. Notes due 2027 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Total debt	$ 1,402.8	1,393.9
Notes payable \| Safeway Inc. Notes due 2019 to 2031, interest rate range of 3.95% to 7.45%
Debt Instrument [Line Items]
Total debt	944.4	1,266.9
Line of credit \| ABL Facility, average interest rate of 3.60%
Debt Instrument [Line Items]
Total debt	$ 610.0	0.0
Average interest rate percentage	3.60%
Other notes payable \| Other Notes Payable, unsecured
Debt Instrument [Line Items]
Total debt	$ 124.0	242.7
Mortgage notes payable \| Mortgage Notes Payable, secured
Debt Instrument [Line Items]
Total debt	$ 18.9	$ 20.9
Minimum \| Secured debt \| Albertsons Term Loans due 2022 to 2025, interest rate range of 4.32% to 5.69%
Debt Instrument [Line Items]
Stated interest rate percentage	4.32%
Minimum \| Notes payable \| New Albertson's, L.P. Notes due 2027 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Stated interest rate percentage	6.52%
Minimum \| Notes payable \| Safeway Inc. Notes due 2019 to 2031, interest rate range of 3.95% to 7.45%
Debt Instrument [Line Items]
Stated interest rate percentage	3.95%
Maximum \| Secured debt \| Albertsons Term Loans due 2022 to 2025, interest rate range of 4.32% to 5.69%
Debt Instrument [Line Items]
Stated interest rate percentage	5.69%
Maximum \| Notes payable \| New Albertson's, L.P. Notes due 2027 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Stated interest rate percentage	8.70%
Maximum \| Notes payable \| Safeway Inc. Notes due 2019 to 2031, interest rate range of 3.95% to 7.45%
Debt Instrument [Line Items]
Stated interest rate percentage	7.45%

Contractual interest rate for funds borrowed, under the debt agreement.

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

Name:	us-gaap_LongTermDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

Name:	us-gaap_LongTermDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant