Asset Securitization Program Facility Fee.

No definition available.

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- Definition

Asset Securitization Program Interest Rate At Period End.

+ References

No definition available.

+ Details

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- Definition

Asset Securitization Program Prior Maximum Capacity

+ References

No definition available.

+ Details

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
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-Paragraph 12
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
-Subparagraph (b)
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-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Period Type:	instant

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term notes classified as other, payable after one year or the normal operating cycle, if longer.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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Period Type:	duration

- Details

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- Details

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- Details

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Debt - LT Debt (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
Debt - LT Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 0	$ (58,759)	$ 0	$ (58,759)	$ (58,759)
Long-term debt	3,690,327		3,690,327		2,933,045
Accounts receivable, net	8,076,896		8,076,896		8,125,588
Investment Income, Interest and Dividend	11,303	$ 7,084	20,557	15,010
Proceeds from note offering, net			0	$ 494,625
Revolving Credit Facility due in 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 57,700		$ 57,700		0
Debt Instrument, Basis Spread on Variable Rate			1.18%
Debt Instrument, Interest Rate, Effective Percentage	2.41%		2.41%
Line of Credit Facility, Commitment Fee Percentage			0.20%
Maximum Borrowing Capacity	$ 1,800,000		$ 1,800,000
Asset securitization program [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,200,000		$ 1,200,000		490,000
Debt Instrument, Interest Rate, Effective Percentage	2.57%		2.57%
Asset Securitization Program Facility Fee	0.40%		0.40%
Asset Securitization Program Interest Rate Spread At End of Period	0.40%		0.40%
Accounts receivable, net	$ 2,525,100		$ 2,525,100		$ 2,270,500
Maximum Borrowing Capacity	1,200,000		1,200,000
Asset Securitization Program Prior Maximum Capacity	910,000		910,000
Senior Debentures Due in 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					6.875%
3.00% notes, due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	0		0		$ 300,500
Debt Instrument, Face Amount	300,000		300,000
6.00% notes, due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	$ 218,000		$ 218,000		224,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%		6.00%
Long-term debt	$ 209,059		$ 209,059		208,971
5.125% notes, due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	$ 135,500		$ 135,500		139,000
Debt Instrument, Interest Rate, Stated Percentage	5.125%		5.125%
Long-term debt	$ 130,473		$ 130,473		130,400
3.50% notes, due in 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	345,500		345,500		355,000
Long-term debt	346,899		346,899		346,518
4.50% notes, due 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	304,500		304,500		315,500
Long-term debt	297,369		297,369		297,122
3.25% notes, due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	468,000		468,000		$ 491,000
Debt Instrument, Interest Rate, Stated Percentage					3.25%
Long-term debt	493,618		493,618		$ 493,161
Debt Instrument, Face Amount					500,000
Proceeds from note offering, net					493,810
4.00% notes, due in 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	342,500		342,500		356,500
Long-term debt	345,469		345,469		345,182
7.5% senior debentures, due 2027 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	$ 131,500		$ 131,500		138,500
Debt Instrument, Interest Rate, Stated Percentage	7.50%		7.50%
Long-term debt	$ 109,735		$ 109,735		109,694
3.875% Notes Due in 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	473,500		473,500		$ 501,000
Debt Instrument, Interest Rate, Stated Percentage					3.875%
Long-term debt	493,826		493,826		$ 493,563
Debt Instrument, Face Amount					500,000
Proceeds from note offering, net					494,625
Other obligations with various interest rates and due dates [Member]
Debt Instrument [Line Items]
Other Notes Payable, Noncurrent	$ 6,179		$ 6,179		$ 18,434
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	2.785%		2.785%
Maximum Borrowing Capacity	$ 200,000		$ 200,000
3.00% notes, due 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.00%		3.00%