0001209501 2026-06-30 2026-06-30 0001209501 nyli:C000193958Member 2026-06-30 2026-06-30 0001209501 nyli:C000074529Member 2026-06-30 2026-06-30 0001209501 nyli:C000154616Member 2026-06-30 2026-06-30 0001209501 nyli:C000154619Member 2026-06-30 2026-06-30 0001209501 nyli:C000025713Member 2026-06-30 2026-06-30 0001209501 nyli:C000074528Member 2026-06-30 2026-06-30 0001209501 nyli:C000099457Member 2026-06-30 2026-06-30 0001209501 nyli:C000154615Member 2026-06-30 2026-06-30 0001209501 nyli:C000025715Member 2026-06-30 2026-06-30 NYLIAC VARIABLE ANNUITY SEPARATE ACCOUNT IV 0001209501 false N-4 N-4 2026-06-30 All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted. All references to Western Asset Management Company Ltd. as a subadviser to the Western Asset Core Plus VIT Portfolio – Class II are deleted.