Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt (Schedule of Debt) (Details) - USD ($) $ in Millions	Oct. 20, 2016	Sep. 30, 2016	Sep. 22, 2016	Dec. 31, 2015	May 26, 2015
Debt Instrument [Line Items]
Total debt		$ 3,963		$ 3,611
Less: short-term debt including current maturities		400		143
Long-term debt		3,563		3,468
Senior notes \| 5.9% Senior Notes, due 2017
Debt Instrument [Line Items]
Long-term debt		$ 400		399
Stated interest rate (percent)		5.90%
Unamortized debt discount and issuance costs		$ 1
Senior notes \| 2.5% Senior Notes, due 2018
Debt Instrument [Line Items]
Long-term debt		$ 398		398
Stated interest rate (percent)		2.50%
Unamortized debt discount and issuance costs		$ 2
Senior notes \| 3.3% Senior Notes, due 2020
Debt Instrument [Line Items]
Long-term debt		$ 695		695
Stated interest rate (percent)		3.30%
Unamortized debt discount and issuance costs		$ 5
Senior notes \| 4.0% Senior Notes, due 2025
Debt Instrument [Line Items]
Long-term debt		$ 691		690
Stated interest rate (percent)		4.00%			4.00%
Unamortized debt discount and issuance costs		$ 9
Senior notes \| 4.4% Senior Notes, due 2026
Debt Instrument [Line Items]
Long-term debt		$ 891		890
Stated interest rate (percent)		4.40%
Unamortized debt discount and issuance costs		$ 9
Senior notes \| 2.95% Senior Notes, due 2027
Debt Instrument [Line Items]
Long-term debt		$ 492		0
Stated interest rate (percent)		2.95%	2.95%
Unamortized debt discount and issuance costs		$ 8
Senior notes \| 6.55% Senior Notes, due 2037
Debt Instrument [Line Items]
Long-term debt		$ 396		$ 396
Stated interest rate (percent)		6.55%
Unamortized debt discount and issuance costs		$ 4
Subsequent Event \| Senior notes \| 5.9% Senior Notes, due 2017
Debt Instrument [Line Items]
Stated interest rate (percent)	5.90%
Repayments of debt	$ 400