Consolidated Statements of Cash Flows Statement - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities:
Consolidated net income	$ 1,246.7	$ 1,380.9	$ 1,040.5
Adjustments to reconcile consolidated net income to net cash provided by operating activities –
Equity in net income of affiliates	(20.2)	(51.7)	(72.4)
Loss on extinguishment of debt	0.0	21.2	0.0
Fixed asset impairment charges	6.1	3.4	5.4
Deferred tax (benefit) provision	86.7	(81.3)	103.6
Depreciation and amortization	484.4	427.7	378.2
Stock-based compensation	41.4	70.2	68.2
Net change in recoverable customer engineering, development and tooling	54.4	(54.1)	(16.9)
Net change in working capital items (see below)	(118.9)	72.5	88.1
Changes in other long-term liabilities	(23.0)	6.6	(12.9)
Changes in other long-term assets	(16.7)	2.1	38.3
Other, net	38.9	(14.4)	(0.8)
Net cash provided by operating activities	1,779.8	1,783.1	1,619.3
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(677.0)	(594.5)	(528.3)
Acquisitions, net of cash acquired	0.0	(292.4)	(155.9)
Other, net	(16.5)	18.3	47.1
Net cash used in investing activities	(693.5)	(868.6)	(637.1)
Cash Flows from Financing Activities:
New credit agreement borrowings	0.0	250.0	0.0
Short-term borrowings (repayments), net	7.3	(8.9)	9.1
Proceeds from the issuance of senior notes	0.0	744.7	0.0
Repurchase of senior notes	0.0	(517.0)	0.0
Payment of debt issuance and other financing costs	0.0	(11.9)	0.0
Repurchase of common stock	(704.9)	(450.5)	(658.8)
Dividends paid to Lear Corporation stockholders	(186.3)	(137.7)	(88.8)
Dividends paid to noncontrolling interests	(79.1)	(81.6)	(33.3)
Other, net	(61.2)	(58.8)	(79.2)
Net cash used in financing activities	(1,030.5)	(742.0)	(872.9)
Effect of foreign currency translation	(36.4)	56.3	(34.3)
Net Change in Cash, Cash Equivalents and Restricted Cash	19.4	228.8	75.0
Cash, Cash Equivalents and Restricted Cash as of Beginning of Period	1,500.4	1,271.6	1,196.6
Cash, Cash Equivalents and Restricted Cash as of End of Period	1,519.8	1,500.4	1,271.6
Changes in Working Capital Items:
Accounts receivable	230.8	(115.2)	(176.3)
Inventories	(32.5)	(76.0)	(53.5)
Accounts payable	(199.3)	195.3	157.6
Accrued liabilities and other	(117.9)	68.4	160.3
Net change in working capital items	(118.9)	72.5	88.1
Supplementary Disclosure:
Cash paid for interest	97.1	94.0	88.8
Cash paid for income taxes, net of refunds received of $40.6 million in 2018, $35.5 million in 2017 and $16.4 million in 2016	279.2	284.0	237.6
New Credit Agreement
Cash Flows from Financing Activities:
Credit agreement repayments	(6.3)	(1.6)	0.0
Prior Credit Agreement
Cash Flows from Financing Activities:
Credit agreement repayments	$ 0.0	$ (468.7)	$ (21.9)