Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities:
Consolidated net income	$ 1,040.5	$ 795.8	$ 702.3
Adjustments to reconcile consolidated net income to net cash provided by operating activities –
Equity in net income of affiliates	(72.4)	(49.8)	(36.3)
Loss on extinguishment of debt	0.0	14.3	17.9
Fixed asset impairment charges	5.4	5.7	2.6
Deferred tax provision (benefit)	103.6	48.6	(58.0)
Depreciation and amortization	378.2	347.8	310.9
Stock-based compensation	68.2	65.7	70.7
Net change in recoverable customer engineering, development and tooling	(16.9)	(57.8)	7.6
Net change in working capital items (see below)	88.1	58.0	(140.2)
Changes in other long-term liabilities	(12.9)	(20.2)	5.4
Changes in other long-term assets	38.3	44.3	41.4
Other, net	(0.8)	18.7	3.5
Net cash provided by operating activities	1,619.3	1,271.1	927.8
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(528.3)	(485.8)	(424.7)
Acquisitions, net of cash acquired and use of $350 million restricted cash in 2015 (see non-cash investing activities below) (Note 3)	(155.9)	(499.2)	0.0
Cash restricted for use - acquisition of Eagle Ottawa	0.0	0.0	(350.0)
Other, net	47.1	19.7	(5.9)
Net cash used in investing activities	(637.1)	(965.3)	(780.6)
Cash Flows from Financing Activities:
Credit agreement borrowings	0.0	500.0	0.0
Credit agreement repayments	(21.9)	(9.4)	0.0
Short-term borrowings, net	9.1	0.0	0.0
Proceeds from the issuance of senior notes	0.0	0.0	975.0
Repurchase of senior notes, net of use of $250 million restricted cash in 2015 (see non-cash financing activities below) (Note 6)	0.0	(5.0)	(327.1)
Payment of debt issuance and other financing costs	0.0	0.0	(18.1)
Cash restricted for use - repurchase of senior notes	0.0	0.0	(250.0)
Repurchase of common stock	(658.8)	(487.4)	(411.4)
Dividends paid to Lear Corporation stockholders	(88.8)	(78.5)	(65.3)
Dividends paid to noncontrolling interests	(33.3)	(27.8)	(25.9)
Other, net	(79.2)	(48.2)	(38.0)
Net cash used in financing activities	(872.9)	(156.3)	(160.8)
Effect of foreign currency translation	(34.3)	(47.0)	(30.0)
Net Change in Cash and Cash Equivalents	75.0	102.5	(43.6)
Cash and Cash Equivalents as of Beginning of Period	1,196.6	1,094.1	1,137.7
Cash and Cash Equivalents as of End of Period	1,271.6	1,196.6	1,094.1
Changes in Working Capital Items:
Accounts receivable	(176.3)	(173.4)	(358.7)
Inventories	(53.5)	4.1	(91.2)
Accounts payable (including $45.7 million of cash paid in 2015 in conjunction with the acquisition of Eagle Ottawa to settle pre-existing accounts payable)	157.6	76.2	231.3
Accrued liabilities and other	160.3	151.1	78.4
Net change in working capital items	88.1	58.0	(140.2)
Supplementary Disclosure:
Cash paid for interest	88.8	85.6	70.7
Cash paid for income taxes, net of refunds received of $16.4 million in 2016, $11.9 million in 2015 and $24.0 million in 2014	237.6	218.7	154.6
Non-cash Investing Activities:
Cash restricted for use - acquisition of Eagle Ottawa	0.0	(350.0)	0.0
Non-cash Financing Activities:
Cash restricted for use - repurchase of senior notes	$ 0.0	$ (250.0)	$ 0.0