v3.6.0.2

Long-Term Debt (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 6,990,000,000 | $ 6,649,718,000
Capital Lease Obligation | 38,710,000 | 45,064,000
Less: Current Portion of Long-Term Debt | 6,579,000 | 6,579,000
Unamortized Debt Discount | 36,915,000 | 34,518,000
Debt Issuance Costs | 5,437,000 | 4,774,000
Total Long-Term Debt | 6,979,779,000 | 6,648,911,000
Long-Term Debt by Maturity [Abstract] |  |
Aggregate annual maturity of long-term debt (excluding capital lease obligations) in 2017 | 600,000,000 |
Aggregate annual maturity of long-term debt (excluding capital lease obligations) in 2018 | 350,000,000 |
Aggregate annual maturity of long-term debt (excluding capital lease obligations) in 2019 | 900,000,000 |
Aggregate annual maturity of long-term debt (excluding capital lease obligations) in 2020 | 1,000,000,000 |
Aggregate annual maturity of long-term debt (excluding capital lease obligations) in 2021 | 750,000,000 |
5.10% Senior Notes Due 2036 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 250,000,000 | 0
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 250,000,000 |
Debt Instrument Issuance Interest Rate | 5.10% |
2.625% Senior Notes due 2023 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 1,250,000,000 | 1,250,000,000
3.15% Senior Notes due 2025 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 500,000,000 | 500,000,000
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 500,000,000 |
Debt Instrument Issuance Interest Rate | 3.15% |
Senior Notes Due 2026 [Member] |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 750,000,000 | 0
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 750,000,000 |
Debt Instrument Issuance Interest Rate | 4.15% |
3.90% Senior Notes due 2035 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 500,000,000 | 500,000,000
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 500,000,000 |
Debt Instrument Issuance Interest Rate | 3.90% |
2.500% Senior Notes due 2016 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 0 | 400,000,000
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 400,000,000 |
Debt Instrument Issuance Interest Rate | 2.50% |
Debt Instrument, Maturity Date | Feb. 01, 2016 |
2.95% Senior Notes due 2015 |  |
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 500,000,000 |
Debt Instrument Issuance Interest Rate | 2.95% |
5.875% Senior Notes due 2017 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 600,000,000 | 600,000,000
Debt Instrument Issuance [Abstract] |  |
Debt Instrument Issuance Face Amount | $ 600,000,000 |
Debt Instrument Issuance Interest Rate | 5.875% |
6.875% Senior Notes due 2018 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | $ 350,000,000 | 350,000,000
5.625% Senior Notes due 2019 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 900,000,000 | 900,000,000
4.40% Senior Notes due 2020 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 500,000,000 | 500,000,000
2.45% Senior Notes due 2020 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 500,000,000 | 500,000,000
4.100% Senior Notes due 2021 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 750,000,000 | 750,000,000
6.65% Senior Notes due 2028 |  |
Debt Instrument Table [Line Items] |  |
Long-Term Debt | 140,000,000 | 140,000,000
the Notes |  |
Debt Instrument Issuance [Abstract] |  |
Net Proceeds From Issuance of Senior Long-Term Debt | 990,000,000 |
the New Notes |  |
Debt Instrument Issuance [Abstract] |  |
Net Proceeds From Issuance of Senior Long-Term Debt | $ 991,000,000 |
Revolving Credit Agreement 2011 |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Expiration Date | Oct. 11, 2016 |
Maximum borrowing capacity | $ 2,000,000,000 |
Current Borrowings Outstanding | $ 0 |
Revolving Credit Agreement 2015 |  |
Line of Credit Facility [Line Items] |  |
Eurodollar rate at period end (in hundredths) | 1.77% |
Base rate at period end (in hundredths) | 3.75% |
Line of Credit Facility, Expiration Date | Jul. 21, 2020 |
Maximum borrowing capacity | $ 2,000,000,000 |
Maximum total debt-to-total capitalization ratio allowed under financial covenant (in hundredths) | 65.00% |
Letters of Credit Outstanding, Amount | $ 0 |
Current Borrowings Outstanding | 0 |
Uncommitted Credit Facilities |  |
Line of Credit Facility [Line Items] |  |
Current Borrowings Outstanding | 0 |
Commercial Paper |  |
Debt Instrument Table [Line Items] |  |
Long-term Commercial Paper, Noncurrent | 0 | 259,718,000
Line of Credit Facility [Line Items] |  |
Average Borrowings Outstanding | $ 130,000,000 | $ 81,000,000
Weighted average interest rate (in hundredths) | 0.76% | 0.51%
Current Borrowings Outstanding | $ 0 | $ 260,000,000

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