v2.4.1.9

Financing (Detail Of Debt Repayments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Extinguishment of debt	$ 407us-gaap_ExtinguishmentOfDebtAmount
Debt repaid		870us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations	124us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations	1,803us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations
5.90% Senior Notes Due 2016 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_FivePointNinePercentSeniorNotesDueTwoThousandSixteenMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_FivePointNinePercentSeniorNotesDueTwoThousandSixteenMember	400us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_FivePointNinePercentSeniorNotesDueTwoThousandSixteenMember
7.875% Senior Notes Due 2015 [Member]
Extinguishment of debt		407us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointEightSevenFivePercentSeniorNotesDueTwoThousandFifteenMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointEightSevenFivePercentSeniorNotesDueTwoThousandFifteenMember	205us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointEightSevenFivePercentSeniorNotesDueTwoThousandFifteenMember
7.45% Senior Debentures Due 2016 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFourFivePercentSeniorDebenturesDueTwoThousandSixteenMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFourFivePercentSeniorDebenturesDueTwoThousandSixteenMember	64us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFourFivePercentSeniorDebenturesDueTwoThousandSixteenMember
7.5% Senior Debentures Due 2015 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFivePercentSeniorDebenturesDueTwoThousandFifteenMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFivePercentSeniorDebenturesDueTwoThousandFifteenMember	31us-gaap_ExtinguishmentOfDebtAmount / us-gaap_LongtermDebtTypeAxis = m_SevenPointFivePercentSeniorDebenturesDueTwoThousandFifteenMember
Five point seven five percent senior notes due 2014[Member] [Member]
Extinguishment of debt		453us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_Fivepointsevenfivepercentseniornotesdue2014MemberMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_Fivepointsevenfivepercentseniornotesdue2014MemberMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_Fivepointsevenfivepercentseniornotesdue2014MemberMember
7.625% Senior Debentures Due 2013 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_SevenPointSixTwoFivePercentSeniorDebenturesMember	109us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_SevenPointSixTwoFivePercentSeniorDebenturesMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_SevenPointSixTwoFivePercentSeniorDebenturesMember
5.35% Senior Notes Due 2012 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointThreeFivePercentSeniorNotesDueTwoThousandTwelveMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointThreeFivePercentSeniorNotesDueTwoThousandTwelveMember	616us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointThreeFivePercentSeniorNotesDueTwoThousandTwelveMember
5.875% Senior Notes Due 2013 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointEightSevenFivePercentSeniorNotesDueTwoThousandThirteenMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointEightSevenFivePercentSeniorNotesDueTwoThousandThirteenMember	298us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_FivePointEightSevenFivePercentSeniorNotesDueTwoThousandThirteenMember
8.0% Senior Debentures Due 2012 [Member]
Extinguishment of debt		0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_EightPercentSeniorDebenturesDueTwoThousandTwelveMember	0us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_EightPercentSeniorDebenturesDueTwoThousandTwelveMember	173us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_EightPercentSeniorDebenturesDueTwoThousandTwelveMember
9.5% Amortizing Debentures Due 2021 [Member]
Extinguishment of debt		4us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember	4us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember	4us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember
9.75% Amortizing Debentures Due 2021 [Member]
Extinguishment of debt		2us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointSevenFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember	2us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointSevenFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember	2us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_NinePointSevenFivePercentAmortizingDebenturesDueTwoThousandTwentyOneMember
Capital Lease and Other Long-Term Obligations [Member]
Extinguishment of debt		$ 4us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_CapitalLeaseAndOtherLongTermObligationsMember	$ 9us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_CapitalLeaseAndOtherLongTermObligationsMember	$ 10us-gaap_ExtinguishmentOfDebtAmount / us-gaap_ShortTermDebtTypeAxis = m_CapitalLeaseAndOtherLongTermObligationsMember

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

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+ References

No definition available.

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