Derivatives and Fair Value of Financial Instruments-Deferred Comp Securities (Details) - USD ($) $ in Millions	Mar. 30, 2019	Dec. 31, 2018
Commodities
Assets:
Margin account	$ 67	$ 15
Domestic equity securities
Assets:
Trading securities	714	632
Domestic debt securities
Assets:
Trading securities	396	268
Foreign equity securities
Assets:
Trading securities	222	218
High yield securities
Assets:
Trading securities	65	19
Foreign debt securities
Assets:
Trading securities	40	16
Collateralized loan obligation
Assets:
Trading securities	27	28
Money market funds held in trading accounts
Assets:
Trading securities	10	146
Term deposits
Assets:
Trading securities	9	9
Other trading securities
Assets:
Trading securities	5
Recurring basis \| Level 1
Assets:
Total assets	1,131	1,282
Liabilities:
Total liabilities	29	4
Recurring basis \| Level 1 \| Commodities
Assets:
Derivatives	1	4
Liabilities:
Derivatives	29	4
Recurring basis \| Level 1 \| Domestic equity securities \| Short term investments
Assets:
Trading securities	714	632
Recurring basis \| Level 1 \| Domestic equity securities \| Other current assets
Assets:
Trading securities	35	32
Recurring basis \| Level 1 \| Domestic debt securities \| Short term investments
Assets:
Trading securities	116	215
Recurring basis \| Level 1 \| Foreign equity securities \| Short term investments
Assets:
Trading securities	222	218
Recurring basis \| Level 1 \| Foreign equity securities \| Other current assets
Assets:
Trading securities	2	3
Recurring basis \| Level 1 \| High yield securities \| Short term investments
Assets:
Trading securities	10	7
Recurring basis \| Level 1 \| Foreign debt securities \| Short term investments
Assets:
Trading securities	2	2
Recurring basis \| Level 1 \| Money market funds held in trading accounts \| Short term investments
Assets:
Trading securities	10	146
Recurring basis \| Level 1 \| Money market funds held in trading accounts \| Other current assets
Assets:
Trading securities	2	5
Recurring basis \| Level 1 \| Term deposits \| Short term investments
Assets:
Trading securities	9	9
Recurring basis \| Level 1 \| Other trading securities \| Short term investments
Assets:
Trading securities	5	5
Recurring basis \| Level 1 \| Fixed income securities \| Other current assets
Assets:
Trading securities	2	3
Recurring basis \| Level 1 \| Other \| Other current assets
Assets:
Trading securities	1	1
Recurring basis \| Level 2
Assets:
Total assets	404	111
Liabilities:
Total liabilities		5
Recurring basis \| Level 2 \| Commodities
Assets:
Derivatives		2
Recurring basis \| Level 2 \| Foreign currencies
Assets:
Derivatives	4	2
Recurring basis \| Level 2 \| Domestic debt securities \| Short term investments
Assets:
Trading securities	280	53
Recurring basis \| Level 2 \| High yield securities \| Short term investments
Assets:
Trading securities	55	12
Recurring basis \| Level 2 \| Foreign debt securities \| Short term investments
Assets:
Trading securities	38	14
Recurring basis \| Level 2 \| Collateralized loan obligation \| Short term investments
Assets:
Trading securities	27	28
Recurring basis \| Level 2 \| Other trading securities \| Short term investments
Liabilities:
Derivatives		5
Recurring basis \| Level 3
Liabilities:
Contingent consideration	13	13
Total liabilities	13	13
Recurring basis \| Fair Value
Assets:
Total assets	1,535	1,393
Liabilities:
Contingent consideration	13	13
Total liabilities	42	22
Recurring basis \| Fair Value \| Commodities
Assets:
Derivatives	1	6
Margin account	67	15
Liabilities:
Derivatives	29	4
Recurring basis \| Fair Value \| Foreign currencies
Assets:
Derivatives	4	2
Recurring basis \| Fair Value \| Other current assets \| Commodities
Assets:
Derivative assets and liabilities, net basis	39	17
Recurring basis \| Fair Value \| Domestic equity securities \| Short term investments
Assets:
Trading securities	714	632
Recurring basis \| Fair Value \| Domestic equity securities \| Other current assets
Assets:
Trading securities	35	32
Recurring basis \| Fair Value \| Domestic debt securities \| Short term investments
Assets:
Trading securities	396	268
Recurring basis \| Fair Value \| Foreign equity securities \| Short term investments
Assets:
Trading securities	222	218
Recurring basis \| Fair Value \| Foreign equity securities \| Other current assets
Assets:
Trading securities	2	3
Recurring basis \| Fair Value \| High yield securities \| Short term investments
Assets:
Trading securities	65	19
Recurring basis \| Fair Value \| Foreign debt securities \| Short term investments
Assets:
Trading securities	40	16
Recurring basis \| Fair Value \| Collateralized loan obligation \| Short term investments
Assets:
Trading securities	27	28
Recurring basis \| Fair Value \| Money market funds held in trading accounts \| Short term investments
Assets:
Trading securities	10	146
Recurring basis \| Fair Value \| Money market funds held in trading accounts \| Other current assets
Assets:
Trading securities	2	5
Recurring basis \| Fair Value \| Term deposits \| Short term investments
Assets:
Trading securities	9	9
Recurring basis \| Fair Value \| Other trading securities \| Short term investments
Assets:
Trading securities	5	5
Liabilities:
Derivatives		5
Recurring basis \| Fair Value \| Fixed income securities \| Other current assets
Assets:
Trading securities	2	3
Recurring basis \| Fair Value \| Other \| Other current assets
Assets:
Trading securities	$ 1	$ 1

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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