Condensed Consolidated Statements Of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 29, 2013		Jun. 30, 2012
Cash Flows from Operating Activities:
Consolidated net income	$ 259.2		$ 299.0
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	135.4		110.3
Net change in recoverable customer engineering, development and tooling	13.3		(56.1)
Net change in working capital items (see below)	(162.2)		(181.8)
Other, net	19.7		(11.6)
Net cash provided by operating activities	265.4		159.8
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(226.4)		(180.4)
Insurance proceeds	7.1		4.5
Cash paid for acquisitions, net of cash acquired			(243.9)
Other, net	40.6		(2.1)
Net cash used in investing activities	(178.7)		(421.9)
Cash Flows from Financing Activities:
Proceeds from the issuance of senior notes	500.0
Repurchase of senior notes	(72.1)
Payment of debt issuance and other financing costs	(13.4)
Repurchase of common stock	(1,000.1)		(122.5)
Dividends paid to Lear Corporation stockholders	(29.6)		(27.6)
Dividends paid to noncontrolling interests	(14.8)		(4.3)
Other	(9.3)		2.0
Net cash used in financing activities	(639.3)		(152.4)
Effect of foreign currency translation	(8.5)		(7.4)
Net Change in Cash and Cash Equivalents	(561.1)		(421.9)
Cash and Cash Equivalents as of Beginning of Period	1,402.2		1,754.3
Cash and Cash Equivalents as of End of Period	841.1	[1]	1,332.4
Changes in Working Capital Items:
Accounts receivable	(474.5)		(399.2)
Inventories	(79.2)		(92.7)
Accounts payable	301.4		329.8
Accrued liabilities and other	90.1		(19.7)
Net change in working capital items	(162.2)		(181.8)
Supplementary Disclosure:
Cash paid for interest	28.1		30.3
Cash paid for income taxes	$ 76.6		$ 42.1

[1] Unaudited.