Derivatives and Fair Value of Financial Instruments-Deferred Comp Securities (Details) - USD ($) $ in Millions	9 Months Ended
Oct. 01, 2016	Dec. 31, 2015
Assets and liabilities measured at fair value on a recurring basis and also its level within the fair value hierarchy
Transfers that occurred into or out of level 1	$ 0
Transfers that occurred into or out of level 2	0
Transfers that occurred into or out of level 3	0
Commodities
Assets:
Margin account	17	$ 29
Money market funds
Assets:
Available-for-sale securities		81
Domestic equity securities
Assets:
Trading securities	491	466
Domestic debt securities
Assets:
Trading securities	403	450
Foreign equity securities
Assets:
Trading securities	159	120
High yield trading debt securities
Assets:
Trading securities	105	104
Collateralized loan obligation
Assets:
Trading securities	14	10
Money market funds held in trading accounts
Assets:
Trading securities	8	22
Other trading securities
Assets:
Trading securities		1
Recurring basis \| Fair Value
Assets:
Total Assets	1,231	1,309
Liabilities:
Liabilities	25	24
Recurring basis \| Fair Value \| Commodities
Assets:
Derivatives	9	4
Margin account	17	29
Liabilities:
Derivatives	12	18
Recurring basis \| Fair Value \| Interest rate swaps
Liabilities:
Derivatives	6	6
Recurring basis \| Fair Value \| Foreign currencies
Assets:
Derivatives	1	8
Liabilities:
Derivatives	7
Recurring basis \| Fair Value \| Other current assets \| Commodities
Assets:
Derivative assets and liabilities, net basis	14	15
Recurring basis \| Fair Value \| Money market funds \| Short-term investments.
Assets:
Available-for-sale securities		81
Recurring basis \| Fair Value \| Domestic equity securities \| Short-term investments.
Assets:
Trading securities	491	466
Recurring basis \| Fair Value \| Domestic equity securities \| Other current assets
Assets:
Trading securities	30	31
Recurring basis \| Fair Value \| Domestic debt securities \| Short-term investments.
Assets:
Trading securities	403	450
Recurring basis \| Fair Value \| Foreign equity securities \| Short-term investments.
Assets:
Trading securities	159	120
Recurring basis \| Fair Value \| Foreign equity securities \| Other current assets
Assets:
Trading securities	4	5
Recurring basis \| Fair Value \| High yield trading debt securities \| Short-term investments.
Assets:
Trading securities	105	104
Recurring basis \| Fair Value \| Collateralized loan obligation \| Short-term investments.
Assets:
Trading securities	14	10
Recurring basis \| Fair Value \| Money market funds held in trading accounts \| Short-term investments.
Assets:
Trading securities	8	22
Recurring basis \| Fair Value \| Other trading securities \| Short-term investments.
Assets:
Trading securities		1
Recurring basis \| Fair Value \| Other \| Other current assets
Assets:
Trading securities	4	3
Recurring basis \| Fair Value \| Fixed income mutual funds \| Other current assets
Assets:
Trading securities	3	4
Recurring basis \| Level 1
Assets:
Total Assets	1,110	1,185
Liabilities:
Liabilities	12	18
Recurring basis \| Level 1 \| Commodities
Assets:
Derivatives	9	4
Liabilities:
Derivatives	12	18
Recurring basis \| Level 1 \| Money market funds \| Short-term investments.
Assets:
Available-for-sale securities		81
Recurring basis \| Level 1 \| Domestic equity securities \| Short-term investments.
Assets:
Trading securities	491	466
Recurring basis \| Level 1 \| Domestic equity securities \| Other current assets
Assets:
Trading securities	30	31
Recurring basis \| Level 1 \| Domestic debt securities \| Short-term investments.
Assets:
Trading securities	403	450
Recurring basis \| Level 1 \| Foreign equity securities \| Short-term investments.
Assets:
Trading securities	159	120
Recurring basis \| Level 1 \| Foreign equity securities \| Other current assets
Assets:
Trading securities	4	5
Recurring basis \| Level 1 \| Money market funds held in trading accounts \| Short-term investments.
Assets:
Trading securities	8	22
Recurring basis \| Level 1 \| Other \| Other current assets
Assets:
Trading securities	3	2
Recurring basis \| Level 1 \| Fixed income mutual funds \| Other current assets
Assets:
Trading securities	3	4
Recurring basis \| Level 2
Assets:
Total Assets	121	124
Liabilities:
Liabilities	13	6
Recurring basis \| Level 2 \| Interest rate swaps
Liabilities:
Derivatives	6	6
Recurring basis \| Level 2 \| Foreign currencies
Assets:
Derivatives	1	8
Liabilities:
Derivatives	7
Recurring basis \| Level 2 \| High yield trading debt securities \| Short-term investments.
Assets:
Trading securities	105	104
Recurring basis \| Level 2 \| Collateralized loan obligation \| Short-term investments.
Assets:
Trading securities	14	10
Recurring basis \| Level 2 \| Other trading securities \| Short-term investments.
Assets:
Trading securities		1
Recurring basis \| Level 2 \| Other \| Other current assets
Assets:
Trading securities	$ 1	$ 1

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