CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 311.1	$ 285.7	$ 104.3
Adjustments to reconcile net earnings to net cash flows provided by operating activities, net of effects from acquisitions:
Depreciation and amortization	83.6	85.3	142.3
Deferred income taxes	34.4	(4.1)	36.3
Non-cash compensation	35.2	30.2	29.7
Provision for doubtful accounts	0.8	7.2	9.6
(Gain)/Loss on disposal of property and equipment	3.0	9.2	3.8
Tax benefits realized from prior exercises of restricted stock	(1.9)	(5.0)	(3.5)
Debt prepayment costs		0.9	243.6
Changes in operating assets and liabilities:
Accounts receivable	(16.1)	(84.7)	(77.0)
Inventories	(194.7)	(184.6)	(284.0)
Other current and non-current assets	(30.1)	67.7	(220.2)
Accounts payable and accrued liabilities	81.5	103.0	266.0
Net cash flows provided by operating activities	306.8	310.8	250.9
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(80.8)	(80.5)	(255.6)
Acquisitions, net of cash acquired		3.9	(1,043.1)
Other	(2.6)	(6.4)	0.8
Net cash flows used in investing activities	(83.4)	(83.0)	(1,297.9)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from common stock issued	5.2	5.8	7.5
Purchase of treasury stock, including share repurhases	(86.7)	(155.3)	(7.0)
Tax benefits realized from prior exercises of restricted stock	1.9	5.0	3.5
Borrowings on line of credit	225.0		868.0
Repayments on line of credit	(225.0)		(868.0)
Proceeds from long-term debt			2,189.0
Proceeds from KLX long-term debt			1,200.0
Principal payments on long-term debt		(136.0)	(1,950.0)
Debt prepayment costs			(210.9)
Debt origination costs			(61.3)
Cash divested in connection with Spin-Off of KLX			(460.0)
Dividends	(85.0)	(79.3)
Net cash flows used in financing activities	(164.6)	(359.8)	710.8
Effect of foreign exchange rate changes on cash and cash equivalents	(10.9)	(6.4)	(9.1)
Net increase (decrease) in cash and cash equivalents	47.9	(138.4)	(345.3)
Cash and cash equivalents, beginning of year	154.1	292.5	637.8
Cash and cash equivalents, end of year	202.0	154.1	292.5
Cash paid (refunded) during period for:
Interest	86.2	77.3	148.3
Income taxes, net of $32.0 payments in 2015	64.7	(11.8)	124.0
Supplemental schedule of non-cash activities:
Accrued property additions	$ 3.1	$ 3.6	$ 9.1