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Derivatives and Fair Value of Financial Instruments-Deferred Comp Securities (Details) - USD ($) $ in Millions	Sep. 29, 2018	Jan. 05, 2018	Dec. 31, 2017
Assets:
Trading securities	$ 1,590		$ 1,576
Liabilities:
Contingent consideration		$ 14
Commodities
Assets:
Margin account	25		20
Domestic equity securities
Assets:
Fair Value Equity	812		752
Domestic debt securities held in mutual funds/ETFs/U.S. Treasuries
Assets:
Trading securities	399		439
Foreign equity securities
Assets:
Fair Value Equity	305		319
Collateralized loan obligation
Assets:
Trading securities	31		29
High yield securities
Assets:
Trading securities	21		21
Term deposits
Assets:
Trading securities	10
Money market funds held in trading accounts
Assets:
Trading securities	7		10
Other trading securities
Assets:
Trading securities	5		6
Recurring basis \| Level 1
Assets:
Total Assets	1,608		1,596
Liabilities:
Liabilities	10		6
Recurring basis \| Level 1 \| Commodities
Assets:
Derivatives	2		4
Liabilities:
Derivatives	10		6
Recurring basis \| Level 1 \| Domestic equity securities \| Short term investments
Assets:
Trading securities	812		752
Recurring basis \| Level 1 \| Domestic equity securities \| Other current assets
Assets:
Trading securities	37		35
Recurring basis \| Level 1 \| Domestic debt securities held in mutual funds/ETFs/U.S. Treasuries \| Short term investments
Assets:
Trading securities	397		438
Recurring basis \| Level 1 \| Foreign equity securities \| Short term investments
Assets:
Trading securities	305		319
Recurring basis \| Level 1 \| Foreign equity securities \| Other current assets
Assets:
Trading securities	3		4
Recurring basis \| Level 1 \| High yield securities \| Short term investments
Assets:
Trading securities	21		21
Recurring basis \| Level 1 \| Term deposits \| Short term investments
Assets:
Trading securities	10
Recurring basis \| Level 1 \| Money market funds held in trading accounts \| Short term investments
Assets:
Trading securities	7		10
Recurring basis \| Level 1 \| Money market funds held in trading accounts \| Other current assets
Assets:
Trading securities	5		5
Recurring basis \| Level 1 \| Other trading securities \| Short term investments
Assets:
Trading securities	5		6
Recurring basis \| Level 1 \| Fixed income securities \| Other current assets
Assets:
Trading securities	3		2
Recurring basis \| Level 1 \| Other \| Other current assets
Assets:
Trading securities	1
Recurring basis \| Level 2
Assets:
Total Assets	35		33
Liabilities:
Liabilities			6
Recurring basis \| Level 2 \| Foreign currencies
Assets:
Derivatives	1		3
Liabilities:
Derivatives			6
Recurring basis \| Level 2 \| Domestic debt securities held in mutual funds/ETFs/U.S. Treasuries \| Short term investments
Assets:
Trading securities	2		1
Recurring basis \| Level 2 \| Collateralized loan obligation \| Short term investments
Assets:
Trading securities	31		29
Recurring basis \| Level 2 \| Other \| Other current assets
Assets:
Trading securities	1
Recurring basis \| Level 3
Liabilities:
Contingent consideration	14
Liabilities	14
Recurring basis \| Fair Value
Assets:
Total Assets	1,643		1,629
Liabilities:
Contingent consideration	14
Liabilities	24		12
Recurring basis \| Fair Value \| Commodities
Assets:
Derivatives	2		4
Margin account	25		20
Liabilities:
Derivatives	10		6
Recurring basis \| Fair Value \| Foreign currencies
Assets:
Derivatives	1		3
Liabilities:
Derivatives			6
Recurring basis \| Fair Value \| Other current assets \| Commodities
Assets:
Derivative assets and liabilities, net basis	17		18
Recurring basis \| Fair Value \| Domestic equity securities \| Short term investments
Assets:
Trading securities	812		752
Recurring basis \| Fair Value \| Domestic equity securities \| Other current assets
Assets:
Trading securities	37		35
Recurring basis \| Fair Value \| Domestic debt securities held in mutual funds/ETFs/U.S. Treasuries \| Short term investments
Assets:
Trading securities	399		439
Recurring basis \| Fair Value \| Foreign equity securities \| Short term investments
Assets:
Trading securities	305		319
Recurring basis \| Fair Value \| Foreign equity securities \| Other current assets
Assets:
Trading securities	3		4
Recurring basis \| Fair Value \| Collateralized loan obligation \| Short term investments
Assets:
Trading securities	31		29
Recurring basis \| Fair Value \| High yield securities \| Short term investments
Assets:
Trading securities	21		21
Recurring basis \| Fair Value \| Term deposits \| Short term investments
Assets:
Trading securities	10
Recurring basis \| Fair Value \| Money market funds held in trading accounts \| Short term investments
Assets:
Trading securities	7		10
Recurring basis \| Fair Value \| Money market funds held in trading accounts \| Other current assets
Assets:
Trading securities	5		5
Recurring basis \| Fair Value \| Other trading securities \| Short term investments
Assets:
Trading securities	5		6
Recurring basis \| Fair Value \| Fixed income securities \| Other current assets
Assets:
Trading securities	3		$ 2
Recurring basis \| Fair Value \| Other \| Other current assets
Assets:
Trading securities	$ 2